Project delivery

What is a submittal in construction?

A submittal is any document or sample a contractor sends to the design team to show exactly what it plans to buy, fabricate, or install, so the architect or engineer can confirm it matches the design before money is spent.

Two construction professionals compare an aluminum frame sample with shop drawings in a site office.
Check the proposed sample and coordinated drawings before releasing fabrication. AI-generated illustration.

A submittal is the contractor's way of saying: here is the exact product, dimension, or assembly we intend to use, please check it against your design. The drawings and specifications describe what the owner wants. Submittals show what the contractor will actually deliver. Nothing gets ordered or fabricated on a submittal item until it comes back reviewed.

Most specs list required submittals section by section, usually under a heading near the start of each section. A typical commercial job can have several hundred of them, from rebar placement drawings to paint color chips.

Common types of submittals

  • Shop drawings: fabricator drawings for things like structural steel, ductwork, millwork, and curtain wall.
  • Product data: manufacturer cut sheets showing model numbers, ratings, and options selected.
  • Samples: physical pieces such as tile, carpet, brick, or a hardware finish.
  • Mock-ups: a built section of wall or a room finish that is reviewed in place.
  • Informational items: test reports, certifications, warranties, and installation instructions that are filed rather than approved.

On federal jobs the standard clause at FAR 52.236-21 describes shop drawings as drawings showing the proposed fabrication and assembly of structural elements and the installation of materials or equipment. It also requires the contractor to coordinate and review them for accuracy, completeness, and compliance before sending them on, and to describe any variation from the contract in writing, separate from the drawings.

How a submittal moves on a real job

Say a mechanical sub on a $2.4 million medical office needs rooftop units with a 14-week lead time. The sub pulls the cut sheets, marks the selected options, and sends the package to the GC. The GC's project engineer checks it against the spec section, stamps it, and forwards it to the architect, who sends it to the mechanical engineer. The engineer returns it marked "approved as noted" with a comment to change the curb height. The GC sends it back down, the sub confirms the change, and the order is released.

Every handoff in that chain costs days. If the spec gives the design team 10 working days to review and the package bounces once, a 14-week unit can easily slip past the date the roof crew needs it. That is why the submittal log and a submittal schedule tied to the construction schedule matter so much.

Typical review stamps and what they mean
StampWhat happens next
Approved or No exceptions takenProceed with ordering or fabrication
Approved as notedProceed, but incorporate the reviewer's comments
Revise and resubmitFix the items flagged and send it again before ordering
RejectedProduct or approach does not meet the design; start over

Common submittal mistakes and disputes

  1. Passing a sub's package to the architect without the GC reviewing it. Reviewers often reject unstamped submittals outright.
  2. Burying a substitution inside a submittal. A different product than specified should go through a substitution request, not slip by on a cut sheet.
  3. Assuming approval shifts responsibility. Design review usually does not relieve the contractor of errors in its own drawings or of meeting the contract.
  4. Starting late. Long-lead items need submittals moving in the first weeks after notice to proceed.

Related terms

Submittals sit next to the request for information as the two main paper flows between field and design team. For a step-by-step process, see how to manage submittals on a construction project. Smart Business Automator tracks each submittal's status, reviewer, and due date so the log is always current; see RFI and submittal tracking automation.

Frequently asked questions

What is the difference between a submittal and an RFI?

An RFI asks the design team a question about the documents. A submittal shows the design team what the contractor plans to provide and asks them to review it.

Who approves submittals?

The architect or engineer of record usually reviews them, after the general contractor checks and stamps them. On some jobs the owner or a consultant reviews certain items, such as finishes or equipment.

Does an approved submittal change the contract?

Generally no. Most contracts say an approved submittal does not authorize a change in the work unless the variation was clearly called out and accepted. Changes still go through a change order.

How long does submittal review take?

The specifications or contract usually set a review period. If they do not, agree on one at the preconstruction meeting and build it into the schedule.

Sources

  1. Acquisition.gov: FAR 52.236-21, Specifications and Drawings for Construction
Written and edited by

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

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