Construction glossary: terms every contractor should know
Plain-English definitions of the terms that show up in contracts, pay applications, schedules, and compliance paperwork, with what each one means for a working contractor.
348 pages
A
- Abatement Abatement is the removal or containment of hazardous materials like asbestos and lead before or during construction. Federal rules, an example, and mistakes.
- Acceptance Acceptance is the owner's formal act of taking the completed work as meeting the contract. What it means, what survives acceptance, an example, and disputes.
- Accounts payable Accounts payable in construction is what a contractor owes subs, suppliers, and rental yards. How job-coded AP works, retainage payable, and approval mistakes.
- Accounts receivable Accounts receivable in construction is billed money not yet collected, including retainage. How to read AR aging, a worked example, and collection mistakes.
- Accrual accounting Accrual accounting records revenue when earned and costs when incurred, not when cash moves. How it works for contractors, with a job example and IRS rules.
- Actual cost Actual cost is what a construction job has really cost to date, from labor, material, subs, and equipment. How it is tracked, compared to budget, and misread.
- Addendum An addendum is a written change to the bid documents issued before bids are due. How addenda work, how to acknowledge them, and why a missed one can sink a bid.
- Agreed-upon procedures Agreed-upon procedures are specific checks a CPA performs and reports on without giving an opinion. How contractors, sureties, and owners use them.
- AIA billing AIA billing is progress billing on the AIA G702 and G703 forms. How a pay app is built from the schedule of values, a worked example, and common rejections.
- AIA G702 AIA G702 is the one-page summary of a construction pay application. What each of its nine lines means, who signs it, and an example with retainage.
- AIA G703 AIA G703 is the continuation sheet behind a G702 pay app. What columns A through I mean, how stored materials and retainage flow, and a worked example.
- Allowance An allowance is a set amount in a construction contract for items not yet chosen. How allowances are reconciled, what they cover, and how they cause disputes.
- Alternate bid An alternate bid is a separate price for a defined change to the base scope. How add and deduct alternates work, how owners pick them, and pricing mistakes.
- Apprentice ratio An apprentice ratio caps how many apprentices can work per journeyworker. How the ratio works on Davis-Bacon jobs, what happens over the limit, and examples.
- Approved vendor list An approved vendor list names the suppliers and subcontractors a company or owner allows on its jobs. How it is built, kept current, and disputed.
- Arbitration Arbitration settles construction disputes before a private arbitrator instead of a court. How it works, what federal law says, costs, and mistakes.
- Architect's supplemental instructions Architect's supplemental instructions (ASI) clarify or make minor changes to the design without changing price or time. How ASIs work, and when to push back.
- As-built drawings As-built drawings show how a building was actually built, field changes included. Who keeps them, what goes in them, and why missing ones stall closeout.
- Assignment of contract Assignment of contract transfers contract rights or duties to another party. How it works in construction, the federal Anti-Assignment Act, and common disputes.
- Attic stock Attic stock is extra material a contractor leaves with the owner for future repairs, like spare tile or ceiling panels. How to price, track, and turn it over.
- Audit trail An audit trail is the record of who did what and when on invoices, change orders, payroll, and approvals. Why contractors need one and how long to keep records.
- Authority having jurisdiction The authority having jurisdiction (AHJ) is the office or official that enforces codes and approves work on a project. Who the AHJ is, and how to work with them.
- Award An award is the owner's decision to give a construction contract to a bidder. How awards work on public and private jobs, what happens after, and disputes.
B
- Back charge A back charge is a cost a GC deducts from a sub's payment for cleanup, damage, or corrective work. How back charges work, notice rules, and how to dispute one.
- Backfill Backfill is the soil or fill placed back into an excavation around foundations, utilities, or walls. How it is placed, compacted, tested, priced, and disputed.
- Backlog Construction backlog is signed contract revenue not yet earned. How to calculate it, how sureties read it, and why the gross profit inside it matters most.
- Balance to finish Balance to finish is the amount of a contract or line item not yet billed. How it appears on AIA G703 pay apps, how to calculate it, and why it gets misused.
- Balanced budget A balanced construction budget ties every cost code back to the contract price, so budget plus fee equals the contract. How to set one up and keep it balanced.
- Baseline schedule A baseline schedule is the approved original plan a construction job is measured against. How it is set, frozen, compared to updates, and used in delay claims.
- Benchmark A benchmark in construction is either a fixed elevation reference point used for layout or a performance yardstick for costs and KPIs. How each one is used.
- Best value procurement Best value procurement awards construction contracts on price plus factors like experience, approach, and past performance. How it works and how to compete.
- Bid bond A bid bond guarantees a bidder will sign the contract and provide performance and payment bonds if it wins. How it works, federal amounts, and common failures.
- Bid day Bid day is the deadline when a construction bid is finalized and submitted. What happens hour by hour, how late sub quotes are handled, and mistakes to avoid.
- Bid form A bid form is the owner's required document for submitting a construction bid: base price, alternates, unit prices, and acknowledgments. How to fill it in.
- Bid leveling Bid leveling compares subcontractor bids on equal scope so the real low number is clear. How to build a leveling sheet, a worked example, and pitfalls.
- Bid package A bid package is the set of documents bidders use to price a job or trade scope. What goes in one, how GCs split packages by trade, and gaps to avoid.
- Bid shopping Bid shopping is when a GC shares a sub's price to pressure others to go lower. How it works, how it differs from bid peddling, and California's listing rules.
- Bid tabulation A bid tabulation lists every bidder's prices side by side after bid opening. How owners and GCs build bid tabs, what they reveal, and how contractors use them.
- Bill of materials A bill of materials lists every material, quantity, and spec for a construction scope. How it differs from a takeoff, an example, and ordering mistakes.
- Billing cycle A construction billing cycle is the regular schedule for submitting pay apps, review, approval, and payment. How a monthly cycle works and how to shorten it.
- BIM BIM, or building information modeling, is a shared 3D model with data about every building element. How contractors use BIM, coordination, and what it costs.
- Blanket purchase order A blanket purchase order covers repeated purchases from one supplier over time under set prices and a cap. How contractors use and track them.
- Bond capacity Bond capacity is the most bonded work a surety will back for a contractor. Single and aggregate limits, what sureties review, and how to raise capacity.
- Bonding company A bonding company, or surety, issues bid, performance, and payment bonds for contractors. How sureties underwrite, what they ask for, and federal bond rules.
- Budget variance Budget variance is the gap between a construction job's budget and its actual or projected cost. How to calculate it by cost code, read it, and act on it early.
- Builder's risk insurance Builder's risk insurance covers a building under construction against fire, theft, wind, and similar losses. Who buys it, what it excludes, and when it ends.
- Building code A building code sets minimum rules for safe design and construction. How the IBC and IRC are adopted locally, which edition applies, and common code problems.
- Building envelope The building envelope is the walls, roof, windows, and foundation that separate inside from outside. How the trades coordinate and what fails.
- Building permit A building permit is official approval to start construction that meets local codes. How permits work, who pulls them, the inspection sequence, and pitfalls.
- Burden rate A burden rate is the percentage added to base wages, or to direct costs, to cover payroll taxes, insurance, benefits, or overhead. How to build and apply it.
- Buy American Act The Buy American Act requires domestic construction materials on federal building jobs. How the domestic content test works, the exceptions, and mistakes.
- Buyout Buyout is when a GC signs subcontracts and purchase orders after award. How the buyout process works, buyout savings and losses, and what to watch for.
C
- CAD CAD, or computer-aided design, is software for producing construction drawings. How contractors use CAD files, how CAD differs from BIM, and file mix-ups.
- Cash basis accounting Cash basis accounting records revenue when cash arrives and costs when they are paid. How it works for contractors, who can use it, and where it misleads.
- Cash flow projection A construction cash flow projection forecasts when money comes in and goes out on each job. How to build one, an example, and mistakes that cause shortfalls.
- Certificate of insurance A certificate of insurance is a one-page summary of a contractor's coverage. What a construction COI shows, what it does not prove, and how GCs check subs.
- Certificate of occupancy A certificate of occupancy is the building department's sign-off that a building can be legally used. When it is required, temporary COs, and what delays one.
- Certificate of substantial completion A certificate of substantial completion records the date work is complete enough for the owner to use. What it triggers, the AIA G704 form, and common disputes.
- Certified payroll Certified payroll is the weekly wage report contractors file on Davis-Bacon and prevailing wage jobs. Who files it, what WH-347 asks for, and common errors.
- Change directive A construction change directive orders changed work before owner and contractor agree on price or time. How a CCD works, AIA G714, and how to protect costs.
- Change log A construction change log tracks every potential and approved change on a job, with cost, time, and status. What to include and the mistakes that cost money.
- Change order A change order is a signed amendment that changes a construction contract's scope, price, or time. How they work, an example, and why they get disputed.
- Change order request A change order request is a contractor's written proposal to change scope, price, or time. What a COR includes, how it becomes a change order, why it stalls.
- Claim A construction claim is a formal demand for more money or time under the contract. How claims differ from change orders, notice rules, and federal claims.
- Clash detection Clash detection finds places where building systems collide in a 3D model before crews install them. How it works, hard vs soft clashes, and common mistakes.
- Closeout Construction closeout is the final phase where punch work, documents, payments, and handover are finished. What it includes, an example, and common delays.
- Collateral warranty A collateral warranty gives a third party, like a lender or tenant, a direct contract claim against a builder or designer. How it works and U.S. options.
- Commissioning Commissioning is the process of verifying that a building's systems are designed, installed, and working as the owner needs. Who does it and the steps.
- Commitment A commitment is a signed subcontract or purchase order that obligates a contractor to pay for work or materials. How commitments are tracked and closed.
- Committed cost Committed cost is money a contractor has agreed to spend on subcontracts and POs but not yet been billed for. Why it matters and how to track it.
- Completed contract method The completed contract method defers all revenue and cost on a job until it is finished. Who can use it under IRS rules, an example, and the trade-offs.
- Completion bond A completion bond guarantees a project gets finished, usually for the lender or owner. How it differs from a performance bond, an example, and pitfalls.
- Compliance documentation Compliance documentation is the paperwork that proves a contractor met its legal and contract duties. What it includes, retention rules, and common gaps.
- Concealed conditions Concealed conditions are hidden site conditions found once work starts, like rot behind walls or rock below grade. How claims work, notice rules, and mistakes.
- Conditional lien waiver A conditional lien waiver gives up lien rights only once a specific payment clears. How conditional waivers work, state statutory forms, and mistakes to avoid.
- Consequential damages Consequential damages are indirect losses from a contract breach, like lost profits or lost use. How the mutual waiver works in construction contracts.
- Constructability review A constructability review checks drawings and specs for buildability, cost, and sequencing problems before construction. How it works and who does it.
- Construction defect A construction defect is a flaw in design, materials, or workmanship that makes a building fall short of its contract or code. Types, claims, and prevention.
- Construction documents phase The construction documents phase turns an approved design into permit and bid drawings and specs. What it produces, how contractors use it, and common gaps.
- Construction draw A construction draw is a payment released from a construction loan as work is completed. How the draw process works, inspections, and why draws get delayed.
- Construction financing Construction financing is short-term money that pays for a building as it goes up, released in draws as work is done. How it works and what contractors face.
- Construction loan A construction loan is short-term financing that funds a building project in draws as work is done. How they work and what contractors should know.
- Construction management at risk CMAR is a delivery method where a CM joins during design, then builds it under a guaranteed maximum price. Pros, cons, example.
- Construction manager A construction manager plans, coordinates, and controls a construction project's cost, schedule, and quality. What the role covers and how CM firms work.
- Construction manager agent A construction manager agent manages a project for the owner for a fee, without holding trade contracts or cost risk. How CMa works and how it compares.
- Construction schedule A construction schedule lays out the activities, durations, and sequence needed to finish a job on time. Schedule types, a worked example, and common mistakes.
- Contingency Construction contingency is money set aside in a budget for costs that are likely but not yet known. Owner vs contractor contingency and how it is used.
- Contract administration Contract administration is the daily work of managing a construction contract: notices, changes, pay apps, submittals, and records. Who does it and what slips.
- Contract documents Contract documents are the agreement, conditions, drawings, specs, and changes that make up a construction contract. What is included and why order matters.
- Contract sum The contract sum is the total amount the owner agrees to pay the contractor, adjusted only by change orders. How it is tracked on pay apps, with an example.
- Contractor's affidavit A contractor's affidavit is a sworn statement listing who supplied labor and materials and what they are owed or have been paid. When it is used and the risks.
- Cost code A cost code is the label that sorts every construction cost into a category so jobs can be budgeted and tracked. How they work and common mistakes.
- Cost report A construction cost report compares budget, committed, actual, and projected cost by cost code. What the columns mean, an example, and how to read it.
- Cost to complete Cost to complete is the money still needed to finish a construction job. How to calculate it, a worked example, and why it drives your WIP and margin.
- Cost-plus contract A cost-plus contract pays the contractor its actual costs plus a fee. Fee types, an example, federal limits, and when cost-plus helps or hurts contractors.
- Cost-plus-fixed-fee A cost-plus-fixed-fee contract pays actual costs plus a set dollar fee that does not grow with cost. How it works, federal fee limits, and an example.
- Crew mix Crew mix is the blend of foremen, journeymen, apprentices, and helpers on a crew. How it sets your blended labor rate, an example, and common estimating errors.
- Critical path method The critical path method finds the longest chain of dependent tasks on a construction job, which sets the finish date. How it works, with an example.
- Cure notice A cure notice warns a contractor to fix a performance problem by a deadline or face default termination. How it works, the federal 10-day rule, and responses.
D
- Daily log A construction daily log records each day on site: crews, weather, work done, deliveries, delays, and visitors. What to include, an example, and mistakes.
- Daily report A construction daily report records each day's crews, work, weather, deliveries, delays, and visitors on site. What to include, an example, and common gaps.
- Davis-Bacon Act The Davis-Bacon Act sets prevailing wages and fringe benefits on federal construction contracts over $2,000. Who it covers, payroll rules, and mistakes.
- Debarment Debarment bars a contractor from government contracts for a set period. How federal debarment works, how long it lasts, and what it means for subs and primes.
- Deductive change order A deductive change order reduces the contract price when scope is removed or downgraded. How credits are priced, an example, and the disputes they cause.
- Defective work Defective work is construction that does not meet the contract documents. Who pays to fix it, how rejection works, warranty periods, and common disputes.
- Deferred maintenance Deferred maintenance is repair and upkeep put off until later, which builds a backlog of failing building systems. What it means for owners and contractors.
- Delay claim A delay claim asks for more time, money, or both when a construction job runs late for reasons outside the contractor's control. Types, proof, and pitfalls.
- Delivery method A delivery method is how an owner organizes design, construction, contracts, and risk on a project. The main types, how they differ, and how to pick one.
- Demobilization Demobilization is the work of pulling equipment, crews, and temporary facilities off a job at the end. What it includes, how it is priced, and how to bill it.
- Design development Design development is the design phase between schematic design and construction documents. What DD drawings show, how contractors use them, and what to watch.
- Design-bid-build Design-bid-build is the traditional delivery method: the owner hires a designer, bids the finished drawings, then hires a builder. How it works and its risks.
- Design-build Design-build puts design and construction under one contract with one firm. How it works, how federal two-phase selection works, risks, and disputes.
- Differing site conditions Differing site conditions are physical conditions at a site that differ from the contract or from what is normal. Type I and Type II, notice rules, and claims.
- Direct costs Direct costs are construction costs you can tie to a specific job: labor, materials, subs, and equipment. Examples, how to code them, and common mistakes.
- Disadvantaged business enterprise A DBE is a firm certified under the U.S. DOT program in 49 CFR Part 26. What it means, how the 2025 and 2026 rule changes work, and what contractors should do.
- Dispute resolution Dispute resolution is the process a construction contract sets for settling claims: negotiation, mediation, arbitration, or litigation. How each step works.
- Document control Document control is how a construction team tracks, versions, and distributes drawings, specs, RFIs, and submittals so crews build from the latest set.
- Draw schedule A draw schedule sets when and how much a construction lender or owner pays as work reaches set milestones. How it works, an example, and common problems.
- Drawing log A drawing log lists every sheet in a construction set with its current revision and date. What columns it needs, how to update it, and mistakes to avoid.
- Dual classification Dual classification means paying a worker at more than one prevailing wage rate for work in different trades. The Davis-Bacon record rule and common mistakes.
E
- E-Verify E-Verify is the free federal system that checks Form I-9 data against government records. When construction firms must use it, FAR deadlines, and flow-down.
- Early warning notice An early warning notice flags a risk to cost, time, or quality before it turns into a claim. How it works under NEC4, the register, and the cost of a late one.
- Earned value Earned value compares the budgeted cost of work done with what it actually cost and what was planned. Formulas, a worked construction example, and pitfalls.
- Encumbrance An encumbrance is either money reserved for a commitment in a budget or a claim against property title, such as a lien. Both meanings explained with examples.
- Equipment cost Equipment cost covers what it takes to own, run, or rent machines on a construction job. How to build an hourly rate, charge jobs, and avoid common errors.
- Equipment rental rate An equipment rental rate is the hourly, daily, weekly, or monthly charge for a machine on a job. How rates are set, priced into bids, and used in change orders.
- Errors and omissions Errors and omissions are mistakes or gaps in design or professional services, and the insurance that covers them. What it means for contractors and owners.
- Escalation clause An escalation clause lets a construction contract price move when material or labor costs rise. How the clause works, a worked example, and what to watch for.
- Estimate at completion Estimate at completion is the forecast total cost of a construction job when it is finished. How to calculate EAC, a worked example, and common errors.
- Estimated cost Estimated cost is the predicted cost of a scope of work before it is built. How it is built, how it differs from price and budget, and where it goes wrong.
- Estimating Construction estimating is forecasting what a job will cost to build and what to bid. The main estimate types, the steps, a worked example, and mistakes.
- Excusable delay An excusable delay is a delay caused by events outside the contractor's control, which earns a time extension. Examples, notice rules, and compensable delays.
- Executed contract An executed contract is one that all parties have signed, making it binding. What counts as execution, why it matters before work starts, and common mistakes.
- Expediting Expediting is following up with suppliers and fabricators to make sure materials and equipment ship on time. What expediters do, with an example and mistakes.
- Extended general conditions Extended general conditions are the added time-related job costs a contractor incurs when a project runs long. How to calculate them and support the claim.
F
- Fabrication Fabrication is making building components in a shop before installation: steel, ductwork, rebar, millwork. How it fits the schedule and the paperwork.
- Fast-track construction Fast-track construction starts building before the design is finished to save time. How it works on a real job, where the risks land, and common disputes.
- Fee In construction, the fee is the contractor's payment on top of reimbursed costs on cost-plus, GMP, and CM contracts. How fees are set, calculated, and disputed.
- Field order A field order is a written instruction issued on site for a minor change or clarification. How it differs from a change order, an example, and disputes.
- Field report A construction field report documents what an inspector, PM, or designer saw during a site visit: progress, issues, and actions. Format, example, mistakes.
- Field verification Field verification means measuring actual site conditions before fabricating or installing. What the FV note means, who does it, and common disputes.
- Final completion Final completion is the point when all contract work, punch list items, and closeout documents are done. How it differs from substantial completion.
- Final lien waiver A final lien waiver gives up lien rights for the whole job once final payment is made. Conditional vs unconditional forms, California example, and risks.
- Final payment Final payment is the last payment on a construction contract, including released retainage. What it requires, how it can waive claims, and how to stay safe.
- Fire watch A fire watch is a trained person assigned to watch for fire during and after hot work or when fire protection is down. OSHA rules, duties, and common mistakes.
- Fixed-price contract A fixed-price contract sets one price for the defined scope, and the contractor keeps the savings or eats the overrun. How it works, an example, and risks.
- Float Float is how long a construction activity can slip without delaying the finish or the next task. Total float vs free float, an example, and who owns it.
- Flow-down clause A flow-down clause passes the prime contract's obligations down to subcontractors. How it works, required federal flow-downs, and what subs should check.
- Force majeure Force majeure clauses excuse delay from events no one controls, like floods or war. How they work in construction, what they cover, and how to give notice.
- Foreman A foreman is the crew leader who runs one trade's labor on site. What a foreman does daily, how it differs from a superintendent, and common pitfalls.
- Fringe benefit credit A fringe benefit credit counts bona fide benefit costs toward the prevailing wage fringe rate. How it works, annualization, and what does not count.
- Fringe benefits Fringe benefits are the non-wage pay owed on prevailing wage jobs: health, pension, vacation, apprenticeship. What counts under Davis-Bacon and how to pay it.
- Front loading Front loading puts extra value on early schedule of values lines so a contractor bills more up front. How it works, why owners push back, and the risks.
G
- Gantt chart A Gantt chart shows a construction schedule as bars on a timeline, one per activity. How to read and build one, an example, and where Gantt charts fall short.
- General conditions General conditions means two things in construction: the contract terms (like AIA A201) and the job overhead costs to run a site. Both explained with examples.
- General contractor A general contractor holds the prime contract with the owner and runs the job through subcontractors. What a GC does, how it gets paid, and licensing basics.
- General liability insurance General liability insurance pays third-party injury and property damage claims from a contractor's work. What it covers, what it excludes, and what GCs require.
- GMP contract A GMP contract pays the contractor cost plus a fee up to a guaranteed maximum price. How the GMP is set, who keeps savings, and where GMP disputes start.
- Gross profit Gross profit is contract revenue minus direct job costs. How contractors calculate it per job and company-wide, what costs belong above the line, and mistakes.
- Guaranteed maximum price A guaranteed maximum price caps what the owner pays for cost of the work plus fee. How the GMP is set, how overruns and savings work, and common disputes.
H
- Hard costs Hard costs are the physical costs of building: labor, materials, equipment, and site work. Examples, how they differ from soft costs, and budgeting mistakes.
- Hold harmless clause A hold harmless clause shifts liability for injuries or damage from one party to another. The three types, state limits, and what subs should check.
- Holdback Holdback is money withheld from a construction payment until conditions are met. Contract holdback, lender holdback, and Canada's statutory holdback explained.
- Hourly rate In construction, hourly rate can mean what you pay a worker or what you bill a client per hour. How each is built, overtime basics, and pricing mistakes.
I
- Indirect costs Indirect costs support more than one job and can't be charged to a single project. Examples, how contractors allocate them, and common pricing mistakes.
- Inspection Construction inspections check that work meets code, plans, and safety rules. The main types, how scheduling and failed inspections work, and mistakes to avoid.
- Insurance certificate tracking Insurance certificate tracking is how a contractor collects, checks, and renews subcontractor COIs so nobody works uninsured. How it works and where it fails.
- Interim lien waiver An interim lien waiver gives up lien rights for a progress payment, not the whole job. How it works, conditional vs unconditional, and common traps.
- Invitation to bid An invitation to bid asks contractors for sealed prices on a fully defined scope. What an ITB includes, how public bidding works, and mistakes that sink bids.
- Invoice approval Invoice approval is how a contractor checks vendor and sub invoices against POs, commitments, and work in place before paying. Steps, example, and mistakes.
- IPD IPD, or integrated project delivery, puts owner, designer, and builder on shared risk and reward from early design. How it works, contract forms, and pitfalls.
J
- Job cost report A job cost report compares budget, committed, and actual costs by cost code for one project. What the columns mean, a worked example, and common errors.
- Job costing Job costing tracks every dollar of labor, material, equipment, and subcontract cost against each project's budget. How it works, an example, and mistakes.
- Job site A job site is the physical place where construction work happens, from staging to work face. Who controls it, what has to be there, and where disputes start.
- Joint check agreement A joint check agreement lets a GC pay a sub and its supplier with one two-party check. How it works, the joint check rule, and the clauses that cause trouble.
- Journeyman A journeyman is a fully trained tradesperson who has completed an apprenticeship or proven equal skill. How the title works, licensing, pay, and ratios.
L
- Labor burden Labor burden is every cost of an employee on top of base wages: payroll taxes, insurance, and benefits. How to calculate it and why bids miss it.
- Labor productivity Labor productivity measures output per labor hour. How contractors track it on jobs, a worked example, what BLS data shows, and mistakes to avoid.
- Labor rate A labor rate is the cost per hour a contractor uses to price labor in estimates and change orders. How to build one by classification, with an example.
- Lead time Lead time is how long it takes from ordering a material or item until it arrives on site. How to plan for it, a worked example, and common scheduling mistakes.
- Lean construction Lean construction is a way of planning and running jobs to cut waste and make workflow predictable. How it works, the Last Planner System, and pitfalls.
- Letter of intent A construction letter of intent says an owner or GC plans to award you a contract. What it covers, when it binds, and the risks of starting work on one.
- Lien priority Lien priority decides which claims on a property get paid first in a foreclosure. How mechanics liens rank against mortgages, relation back, and disputes.
- Lien release A lien release clears a recorded mechanics lien from the property title. How it is recorded, release bonds, court orders, and the disputes that slow it down.
- Lien waiver A lien waiver is a signed statement giving up mechanics lien rights for work that has been paid. The four types, how the swap works, and costly mistakes.
- Lien waiver form A lien waiver form is the document a payee signs to give up lien rights for a payment. The fields it contains, statutory form states, and filling-out errors.
- Liquidated damages Liquidated damages are a daily amount a contractor owes for finishing late, set in the contract. How LDs are calculated, enforced, and fought over.
- Long-lead items Long-lead items are materials and equipment that take so long to get they can delay the job. Common examples, how to track them, and mistakes that cost weeks.
- Look-ahead schedule A look-ahead schedule breaks the next few weeks of the master schedule into crew-level tasks and clears constraints first. How to build one and what goes wrong.
- Lower-tier subcontractor A lower-tier subcontractor works for another sub, not for the general contractor. How tiers work, payment and compliance risks, and Miller Act bond rights.
- Lump sum contract A lump sum contract sets one price for a defined scope, and the contractor carries the cost risk. How billing works, when it fits, and where disputes start.
M
- Maintenance bond A maintenance bond guarantees the contractor will fix defects in materials or workmanship for a set period after completion. How it works, cost, and pitfalls.
- Markup Markup is the percentage a contractor adds to job cost to cover overhead and profit. How to calculate it, how it differs from margin, and common errors.
- Master format MasterFormat is the CSI and CSC numbering system for construction specifications and cost data. How the divisions work, examples, and how contractors use it.
- Material escalation Material escalation is the rise in material prices between bid and purchase. How contractors protect against it, escalation clause types, and an example.
- Means and methods Means and methods are the techniques, sequences, and equipment a contractor chooses to build the work. Who controls them, why it matters, and disputes.
- Mechanics lien A mechanics lien is a legal claim against a property by an unpaid contractor, sub, or supplier. How it works, notice and filing deadlines, and common mistakes.
- Minority business enterprise A minority business enterprise is a firm at least 51 percent owned and controlled by minority individuals. How MBE certification works for construction firms.
- Mobilization Mobilization is the work and cost of getting people, equipment, and facilities onto a job site before production starts. What it covers and how it's billed.
- Mock-up A construction mock-up is a full-size sample of an assembly built to check looks, fit, and performance before the real work. Types, process, and pitfalls.
- Monthly requisition A monthly requisition is the contractor's request for payment for work completed during the month. What goes in it, timing, an example, and common errors.
N
- Net profit margin Net profit margin is the share of revenue a construction company keeps after all job costs, overhead, interest, and taxes. Formula, example, and common errors.
- No-damages-for-delay clause A no-damages-for-delay clause limits a contractor to extra time, not money, when a job is delayed. How it works, where it is void, and how to protect yourself.
- Nonconformance report A nonconformance report (NCR) records work or material that does not meet the contract documents. What goes in one, how it gets closed, and common disputes.
- Notice of claim A notice of claim is the written warning a contractor must send before asking for more time or money. What to include, federal deadlines, and common mistakes.
- Notice of commencement A notice of commencement is the owner's recorded document that starts a private job's lien clock. What it contains, who files it, and why subs need a copy.
- Notice of completion A notice of completion is a recorded owner document that shortens lien deadlines after a job ends. How it works, a California example, and common traps.
- Notice of intent to lien A notice of intent to lien warns the owner that a lien is coming if payment does not arrive. When it is required, what to include, and how to use it well.
- Notice to owner A notice to owner tells a property owner that a sub or supplier is working on the job and has lien rights. Florida timing, who sends it, and common errors.
- Notice to proceed A notice to proceed is the owner's written go-ahead that starts the contract clock. What it triggers, how federal contracts use it, and the mistakes to avoid.
O
- O&M manuals O&M manuals are the operation and maintenance binders handed to the owner at closeout. What goes in them, who supplies each part, and why they delay payment.
- Open book pricing Open book pricing means the contractor shares real costs, quotes, and markups with the owner. How it works, an example, and where open book deals go wrong.
- Operating cash flow Operating cash flow is the cash a contractor's jobs generate, apart from loans or equipment sales. How to calculate it, an example, and why profit is not cash.
- OSHA 300 log The OSHA 300 log is the form employers use to record work-related injuries and illnesses. Who must keep it, deadlines, posting, and common contractor mistakes.
- Overbilling Overbilling means a contractor has billed more than it has earned on a job. How to calculate it on a WIP report, a worked example, and why it is a cash trap.
- Overhead Construction overhead is the cost of running the business that is not tied to one job. What counts, how to figure an overhead rate, and how to recover it.
- Owner-contractor agreement The owner-contractor agreement is the prime contract between a project owner and the builder. What it covers, common AIA forms, and the terms to check first.
- Owner's representative An owner's representative manages a construction project on the owner's behalf. What they do, how they differ from a CM, and how to work with them.
P
- Partial lien waiver A partial lien waiver gives up lien rights only for a specific progress payment, not the whole job. How it works, conditional vs unconditional, and mistakes.
- Pay application A pay application is the contractor's formal request for payment on a construction job. What goes in a pay app, a worked example, and why pay apps get rejected.
- Pay-if-paid clause A pay-if-paid clause makes the owner's payment to the GC a condition of paying the sub. How it shifts risk, how states treat it, and how to push back.
- Pay-when-paid clause A pay-when-paid clause ties the timing of a sub's payment to the GC getting paid. How courts read it, how it differs from pay-if-paid, and what to negotiate.
- Payment bond A payment bond guarantees that subs and suppliers on a job get paid. How it works, federal Miller Act thresholds and deadlines, and how to make a bond claim.
- Payroll burden Payroll burden is the employer cost on top of wages: payroll taxes, workers comp, and benefits. What it includes, a worked example, and how to price it right.
- Percentage of completion method The percentage of completion method recognizes contract revenue as work progresses. How cost-to-cost works, a worked example, tax rules, and common errors.
- Performance bond A performance bond guarantees a contractor will finish the job per the contract. How it works, federal bond amounts, what happens on default, and mistakes.
- Permit A construction permit is government approval to do regulated work. The main permit types, who pulls them, a worked example, and permit mistakes that cost money.
- Phasing plan A phasing plan splits a construction project into stages so parts of a building can stay open or be turned over early. What it shows, an example, and pitfalls.
- Plan review Plan review is the building department's code check of construction drawings before a permit is issued. How it works, comment cycles, and speeding it up.
- Pre-bid meeting A pre-bid meeting is where an owner walks bidders through a project before bids are due. What happens, if it is mandatory, and how to use it to bid smarter.
- Pre-construction meeting A pre-construction meeting brings the owner, designer, and contractor together after award to settle how the job runs. Typical agenda, an example, and mistakes.
- Precon Precon (preconstruction) is the planning done before a construction job starts: budgets, constructability, scheduling, and buyout. What it covers and why.
- Preliminary notice A preliminary notice is an early notice that protects a contractor's or supplier's lien rights. California's 20-day rule, a worked example, and common mistakes.
- Preliminary schedule A preliminary schedule is the early, high-level construction timeline built before full design or contract award. What it includes, an example, and its limits.
- Prequalification Prequalification is how owners and GCs screen contractors before letting them bid. What a prequal form asks, how it is scored, and how to pass one.
- Prevailing wage Prevailing wage is the minimum pay rate set for workers on public construction jobs. How rates are set, fringes, certified payroll, and costly mistakes.
- Prime contractor A prime contractor holds the contract directly with the owner. What that means for risk, payment, bonds, and subs, with a federal example and common mistakes.
- Procurement Construction procurement is how a contractor buys the subs, materials, and equipment a job needs. The steps, a worked example, and where procurement goes wrong.
- Profit margin Profit margin is the share of revenue a contractor keeps as profit. Gross vs. net margin, how margin differs from markup, a worked example, and margin fade.
- Progress billing Progress billing means invoicing a construction job in stages as work is completed, usually monthly. A worked example, federal rules, and common mistakes.
- Progress payment A progress payment is money paid during a construction job for work completed so far. How it is calculated, a worked example, federal rules, and disputes.
- Progress schedule A progress schedule tracks actual work against the plan and is updated as the job moves. What it shows, federal rules, an example, and common update mistakes.
- Project closeout Project closeout is the final phase of a construction job: punch work, closeout documents, final payment, and retainage release. The steps and common delays.
- Project delivery Project delivery is how an owner organizes design and construction: who is hired, when, and who carries which risk. Main methods compared, with an example.
- Project labor agreement A project labor agreement is a pre-hire collective bargaining agreement for one construction project. How PLAs work, the federal $35 million rule, and tips.
- Project manager A construction project manager owns a job's budget, schedule, contract, and paperwork from handoff to closeout. What the role covers and where it goes wrong.
- Prompt payment act A prompt payment act sets deadlines for paying contractors and subs, with interest when payment is late. Federal rules, state versions, and how it flows down.
- Proposal A construction proposal is a contractor's written offer to do defined work for a price. What goes in one, how it differs from a bid, and costly mistakes.
- Punch list A punch list is the list of unfinished or incorrect items found near the end of a construction job. How it works, an example, and how to close it fast.
- Punch walk A punch walk is the end-of-job inspection where the owner, designer, and contractor list unfinished or defective work. How it works and what to avoid.
- Purchase order A construction purchase order is a written order to a supplier for materials or equipment at an agreed price. How POs work, with an example and common mistakes.
Q
- Quality assurance Quality assurance in construction is the system of plans, procedures, and audits that makes sure quality control happens. How QA works, with an example.
- Quality control Quality control in construction is inspecting and testing the work to confirm it meets the plans and specs. What QC includes, a field example, and common gaps.
- Quantity takeoff A quantity takeoff measures the materials and work shown on construction plans so they can be priced. How takeoffs work, a worked example, and common errors.
R
- Reasonable accommodation A reasonable accommodation is a change at work that lets a qualified employee with a disability do the job. How the ADA applies to contractors, with examples.
- Rebar Rebar is the deformed steel bar that reinforces concrete. How it works, what the rolled-on marks mean, how it is ordered and inspected, and common mistakes.
- Recovery schedule A recovery schedule shows how a contractor will win back lost time on a late construction job. When owners demand one, what goes in it, and who pays for it.
- Reimbursable expenses Reimbursable expenses are costs the owner pays back to the contractor on top of the fee or price. What usually counts, a billing example, and common disputes.
- Release of retainage Release of retainage is when an owner or GC pays out the money held back from progress payments. When it happens, what is required, and why it gets delayed.
- Remediation Remediation in construction means removing or containing hazards like mold, asbestos, lead paint, or bad soil. How it fits a job, plus the EPA lead rule.
- Request for change A request for change (RFC) is a written ask to alter scope, price, or time on a construction contract. How it flows, a worked example, and where RFCs go wrong.
- Request for information An RFI is a formal written question from a contractor to the design team when the plans are unclear or conflict. How RFIs work, an example, and RFI mistakes.
- Request for proposal An RFP asks contractors to submit a proposal judged on price and other factors like experience and approach. How construction RFPs work and how to respond.
- Request for qualifications An RFQ asks firms to show experience, team, and capacity so an owner can build a short list before pricing. How construction RFQs work and how to respond.
- Requisition In construction, a requisition is either a request for payment (a pay requisition) or an internal request to buy materials. How each works, with examples.
- Resource leveling Resource leveling shifts activities so crews and equipment are not overbooked. How it works in a construction schedule, an example, and the tradeoffs.
- Responsible bidder A responsible bidder has the finances, experience, equipment, and integrity to perform a public contract. Federal standards, an example, and common disputes.
- Responsive bidder A responsive bidder submits a bid that meets every material requirement of the invitation for bids. What makes a bid nonresponsive, with public bid examples.
- Retainage Retainage is the share of each construction payment held back until the job is finished. How it works, typical percentages, release rules, and mistakes.
- Retention Retention in construction is money withheld from each payment until the job is done. How it flows down to subs, how to account for it, and other meanings.
- Revenue recognition Revenue recognition sets when a contractor books revenue on a job. How ASC 606 and cost-to-cost work, a worked example, the tax side, and common errors.
- RFI log An RFI log is the running list of every request for information on a job, with dates, owners, answers, and impacts. What to track and how it protects you.
- Risk register A risk register lists what could go wrong on a construction job, how likely and costly it is, who owns it, and the plan. Columns, scoring, and an example.
- Rough-in Rough-in is the stage where plumbing, electrical, and HVAC lines are run inside open walls before insulation and drywall. How it works and what goes wrong.
S
- Safety data sheet A safety data sheet (SDS) describes a chemical's hazards and safe handling in 16 sections. What OSHA requires on construction sites and common SDS gaps.
- Sales tax on materials Sales tax on materials decides whether a contractor pays tax as the consumer or collects it as a retailer. How it varies by state and contract, with an example.
- Schedule compression Schedule compression shortens a construction schedule without cutting scope, by crashing or fast-tracking. How each works, what it costs, and an example.
- Schedule float Schedule float is the slack in a construction schedule before a delay moves the finish. How to read it in updates, negative float, and who gets to use it.
- Schedule of values A schedule of values breaks a construction contract sum into line items used to bill progress. How to build one, a worked example, and front-loading problems.
- Scope creep Scope creep is the slow growth of work beyond the contract without matching changes to price or time. How it happens on jobs, an example, and how to stop it.
- Scope gap A scope gap is work the drawings require that no subcontract or bid actually covers. Where scope gaps hide, a worked example, and how to close them early.
- Scope of work A scope of work defines exactly what a contractor or sub will build, supply, and exclude on a job. What it includes, an example, and the gaps that cause fights.
- Sealed bid A sealed bid is a price submitted privately and opened publicly at a set time, with award to the lowest responsive, responsible bidder. Steps and pitfalls.
- Self-insured retention A self-insured retention is the part of each claim a contractor pays, including defense, before its liability policy responds. How it differs from a deductible.
- Self-performed work Self-performed work is construction a contractor does with its own crews instead of subs. How it affects risk and margin, an example, and federal rules.
- Set-aside contract A set-aside contract is a public contract reserved for one group of bidders, such as small, 8(a), HUBZone, SDVOSB, or WOSB firms. Types, rules, and an example.
- Shop drawings Shop drawings are detailed drawings from a contractor or supplier showing how an item will be built and installed. How review works and who is responsible.
- Shoring Shoring is temporary support for trench walls, excavations, formwork, or structures during construction. Types, the OSHA rules, an example, and mistakes.
- Site logistics plan A site logistics plan maps how a construction site works day to day: access, deliveries, cranes, laydown, parking, trailers, and safety zones. What goes in one.
- Site survey A site survey records a property's boundaries, levels, utilities, and existing conditions before design or building. Types, when you need each, and pitfalls.
- Small business set-aside A small business set-aside reserves a federal contract for small firms. How the rule of two works, thresholds, subcontracting limits, and an example.
- Soft costs Soft costs are project costs that are not physical construction: design, permits, financing, insurance, legal. Examples, how they are budgeted, and pitfalls.
- Sole source Sole source means buying from one supplier or contractor without competition. When public owners can do it, federal justification rules, and sole-source specs.
- Specifications Construction specifications are the written requirements for materials, products, and workmanship. How specs are organized and how they relate to drawings.
- Stop work order A stop work order directs a contractor to halt all or part of the work. Who can issue one, the federal 90-day rule, how to recover costs, and common mistakes.
- Stored materials Stored materials are materials bought and stored for a job but not yet installed. How to bill them on a pay app, what owners require, and why they get rejected.
- Sub tier Sub tier means any subcontractor or supplier below the first tier on a construction job. How tiers are counted, flow-down duties, and what the prime must track.
- Sub-subcontractor A sub-subcontractor is hired by a subcontractor, not the general contractor. How the second tier works, payment and lien rights, and common disputes.
- Subcontract A subcontract is the agreement between a general contractor and a sub for part of the work. Key clauses, a worked example, and the terms that cause disputes.
- Subcontractor A subcontractor is a company hired by a general contractor to perform part of a construction job. What subs do, how they get paid, and what GCs require of them.
- Subcontractor default insurance Subcontractor default insurance (SDI) is a policy a general contractor buys to cover losses when a sub fails to perform. How it works versus bonds.
- Subcontractor prequalification Subcontractor prequalification is how a GC checks a sub's finances, safety, capacity, and track record before letting it bid. What gets reviewed and scored.
- Submittal A submittal is the shop drawing, product data, or sample a contractor sends for design review before buying. How it works, review stamps, and mistakes.
- Submittal log A submittal log tracks every required submittal on a job, who has it, and when it is due back. Columns to include, an example, and common mistakes.
- Submittal schedule A submittal schedule sets when each shop drawing, product data sheet, and sample is due, reviewed, and approved so materials arrive in time. How to build one.
- Substantial completion Substantial completion is the point when an owner can use the work for its intended purpose. What it triggers, how it is certified, and the disputes it causes.
- Substitution request A substitution request asks the designer to approve a product other than the one specified. How it works, what to include, and why requests get rejected.
- Sunk cost A sunk cost is money already spent that cannot be recovered. How sunk costs show up on construction jobs and bids, and why they should not drive decisions.
- Superintendent A construction superintendent runs the job site day to day: crews, subs, schedule, safety, and quality. What the role covers, a sample week, and conflicts.
- Supplemental conditions Supplemental conditions change or add to a contract's standard general conditions for one project. What they cover, how to read them, and the clauses that bite.
- Supplier A supplier sells materials or equipment to a job without doing site labor. Where suppliers sit in the contract chain, their lien and bond rights, and disputes.
- Surety A surety is the company that guarantees a contractor's bid, performance, or payment bond. How surety works, who pays, and what happens on a claim.
- Suspension of work Suspension of work is an owner's order to pause all or part of a job. How it works, what costs can be recovered, notice rules, and common disputes.
T
- T&M contract A T&M contract pays the contractor set hourly labor rates plus material cost. Key clauses, not-to-exceed ceilings, a worked example, and common disputes.
- Takeoff A takeoff is the count and measurement of every material on the plans, the first step of any estimate. How estimators do it, an example, and common errors.
- Tender A tender is a formal invitation to price a construction job, or the priced offer sent back. How tendering works, a worked example, and common bid mistakes.
- Termination for convenience Termination for convenience lets an owner end a construction contract without fault. What the contractor can recover, deadlines, and common disputes.
- Termination for default Termination for default ends a construction contract because the contractor failed to perform. Notice steps, excusable delays, surety role, and disputes.
- Three-week look-ahead A three-week look-ahead is a short-range schedule of the next three weeks of field work. How to build one, who uses it, and common mistakes.
- Time and materials Time and materials prices work by hours worked plus materials used. How T&M billing works, how to set rates, a worked invoice, and tracking mistakes.
- Toolbox talk A toolbox talk is a short safety meeting held on the job site, usually before work starts. What it covers, how to run one, and how to document it.
- Total cost of ownership Total cost of ownership adds purchase, operating, upkeep, and disposal costs over an asset's life. How contractors use it for equipment and software.
- Trade partner A trade partner is a subcontractor or supplier a GC treats as a long-term collaborator, not a low-bid vendor. What it means in practice and its limits.
- Turnkey A turnkey project is one where a single contractor delivers a finished, ready-to-use facility. How turnkey contracts work, pros, risks, and disputes.
U
- Unconditional lien waiver An unconditional lien waiver gives up lien rights the moment it is signed, paid or not. When to use it, a California example, and costly mistakes.
- Underbilling Underbilling means a contractor has earned more on a job than it has billed. How to calculate it from a WIP report, why it worries sureties, and how to fix it.
- Union scale Union scale is the wage and benefit rate set in a union collective bargaining agreement. How it is used in bids, prevailing wage, and payroll.
- Unit cost Unit cost is the cost to install one unit of work, like a square foot of drywall or a cubic yard of concrete. How to calculate and use it in bids.
- Unit price contract A unit price contract pays a set rate per unit of work, based on actual quantities. How it works, the FAR 15 percent rule, and common disputes.
- Use tax Use tax is owed on materials and equipment used in a state when sales tax was not paid at purchase. How it hits contractors, examples, and mistakes.
V
- Value added Value-added work is any activity that changes the building in a way the owner will pay for. How to spot it, cut waste, and raise crew productivity.
- Value engineering Value engineering finds lower-cost ways to meet a project's required function. How VE works, federal savings sharing rules, an example, and when VE goes wrong.
- Variance In construction, variance means the gap between budget and actual on a job, or a zoning exception granted for a property. Both meanings with examples.
- Vendor compliance Vendor compliance means confirming subs and suppliers meet contract, insurance, tax, and legal requirements before and during work. What to collect.
W
- Wage determination A wage determination lists the minimum wages and fringes for each trade on a prevailing wage job. How to read one, which applies, and when it changes.
- Waiver of subrogation A waiver of subrogation stops an insurer from suing another party to recover a claim it paid. How it works in construction contracts and COIs.
- Warranty period The warranty period is the time after completion when a contractor must fix defective work. When it starts, the federal one-year rule, examples, and disputes.
- Weather delay A weather delay is lost work time caused by rain, snow, wind, heat, or cold. When it counts as excusable, how to document it, and claim disputes.
- WH-347 WH-347 is the Department of Labor's optional certified payroll form for Davis-Bacon jobs. What it covers, who files it weekly, and common mistakes.
- WIP report A WIP report shows every open job's contract value, costs, percent complete, earned revenue, billings, and margin. How to read one and what lenders look for.
- Work breakdown structure A work breakdown structure splits a construction project into smaller, manageable pieces of work. How to build one, a sample WBS, and how it ties to cost codes.
- Work in progress Work in progress is the value of construction jobs started but not finished. How contractors measure WIP, why it matters to banks and sureties, and errors.
- Work order A work order is a written instruction to perform a specific task, often for small jobs, service calls, or extra work. What it includes and common disputes.
- Workers compensation Workers compensation pays medical costs and lost wages for workers hurt on the job. How it works for contractors, premiums, sub audits, and costly mistakes.
- Working capital Working capital is current assets minus current liabilities. Why it decides a contractor's bonding capacity and cash cushion, with an example.
- Written directive A written directive is an owner or architect instruction to perform work, issued in writing. How it differs from a change order, notice rules, and disputes.