Contracts

What are extended general conditions in construction?

Extended general conditions are the extra time-related site costs, such as supervision, trailers, and temporary utilities, that a contractor incurs because the job ran longer than planned for reasons it did not cause.

Two construction professionals review paper plans beside a tablet at a jobsite workbench.
Plan reviews connect field conditions, drawings, and the next decisions on a job. AI-generated illustration.

General conditions are the costs of running the job site that are not tied to a specific piece of work: the superintendent, the project manager's site time, the trailer, temporary power, toilets, dumpsters, small tools, and the like. Most of those costs run by the week or month. When an owner-caused delay stretches a 12-month job to 14 months, those costs keep running. Extended general conditions are the claim for the extra time.

They are one of the most common parts of a delay claim, and often the easiest to prove, because the costs are on invoices and payroll records.

How extended general conditions are calculated

The usual approach is a daily or monthly rate for time-related general conditions, multiplied by the days of compensable delay. Only time-related costs belong in the rate. One-time costs such as the building permit or the initial trailer setup do not grow because the job ran long.

Example time-related general conditions (made-up figures for illustration)
Cost itemMonthly cost
Superintendent, burdened$15,500
Project engineer, site share$6,200
Office trailer and storage rental$1,400
Temporary power, water, and toilets$1,900
Dumpsters and cleanup$1,600
Total time-related$26,600

Say a GC on a $9 million school renovation is delayed 45 calendar days because the owner held up the abatement permit. The critical path analysis shows the full 45 days were owner-caused and moved the completion date. At $26,600 a month, roughly $875 a day, the extended general conditions are about $39,400 before markup. The contract's change provisions decide whether markup applies and at what rate.

Subcontractors build the same kind of rate, just smaller: a foreman's non-working time, a gang box, a job trailer if they have one. A sub that carries site supervision across a delay should track it the same way the GC does, by the month, with payroll backup.

What owners push back on

  • Was the delay compensable? Excusable-only delays such as normal weather usually earn time, not money. See excusable delay.
  • Did it hit the critical path? If the delayed work had float, the job end date did not move and site costs did not extend.
  • Concurrent delay. If the contractor was also behind, owners argue the extra time would have happened anyway.
  • Contract clauses. A no damages for delay clause may bar recovery, subject to state law exceptions.
  • Double counting. If a change order already paid for added time, the same days cannot be claimed again.

Common mistakes

  1. Using the whole general conditions budget as the rate, including one-time items.
  2. Claiming the delay at the end of the job with no contemporaneous notice.
  3. Not reserving time-related costs in each change order. Many owners treat a signed change order without a reservation as full settlement.
  4. No schedule analysis. Without a fragnet or an updated schedule, the days are just a number.

Related terms

See notice of claim, recovery schedule, suspension of work, and critical path method. Smart Business Automator tracks general conditions costs by job and month, which makes the daily rate easy to show in a change order approval package.

Frequently asked questions

Are extended general conditions the same as home office overhead?

No. Extended general conditions are site costs. Unabsorbed home office overhead is a separate delay claim for company-level costs and is calculated differently.

Do I get extended general conditions for weather delays?

Usually not. Weather is typically excusable but not compensable, which means more time but no added money.

How do I prove extended general conditions?

With payroll records, rental invoices, utility bills, and a schedule analysis showing that owner-caused delay moved the completion date.

Can subcontractors claim extended general conditions?

Yes, if their contracts allow delay costs and they can show their own time-related site costs grew because of a delay they did not cause.

Written and edited by

Maurice Francois writes and edits construction operations guides for Smart Business Automator. More from Maurice on the Scaling Legends podcast.

Get a free assessment