Contracts

What is a field order in construction?

A field order is a written instruction, usually from the architect, owner's rep, or general contractor, telling a contractor to make a minor change or clarification on site, typically without changing the contract price or time.

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.

A field order is a short, written directive issued during construction to resolve something in the field quickly: move a door six inches, add an access panel, use a different anchor detail. Many contracts limit field orders to minor changes that do not affect cost or schedule. When the work does affect money or time, the field order either becomes the start of a change order or should never have been a field order in the first place.

Terms vary by contract. AIA documents use an architect's order for a minor change in the work, the architect's supplemental instructions. Other contracts call it a field directive or written directive. Read your agreement to see which form is used and who can sign it.

How a field order works on a real job

On a $1.6 million church renovation, the plumbing sub finds an existing beam where a new floor drain is drawn. The superintendent calls the architect, who visits that afternoon and issues a field order: shift the drain 14 inches east and slope the floor to match. The plumber can do it with the pipe already on site in the same time. No price change. Everyone signs, and work continues.

Two weeks later, a second field order tells the electrician to add three receptacles in the fellowship hall. That one costs $1,850 in labor and material. The electrician writes 'subject to change order' on the field order before signing, then sends a priced change order request the same week. That note is what keeps the money recoverable.

Field order versus change order

Comparison
Field orderChange order
PurposeQuick clarification or minor changeFormal change to scope, price, or time
Price or time impactUsually none, by definitionYes, stated in the document
Who signsArchitect, owner's rep, or GC, per contractOwner and contractor, often architect too
SpeedSame dayDays or weeks

Common mistakes and disputes

  • Signing without reserving rights. If a field order adds cost and you sign it as-is, the owner may argue you agreed it was no-cost work.
  • Verbal field orders. An instruction in the hallway is not a field order until it is in writing.
  • Field orders as a workaround. Some owners use them to push real changes through without approval. Track the dollar total.
  • Missing the notice clock. The contract's change and claim notice deadlines usually still run from the date of the instruction.
  • Field orders that never reach the sub. The GC receives the order but the affected trade hears about it at the punch walk.

Related terms

Field orders sit next to change directives, RFIs, the change log, and scope creep. Smart Business Automator's change order approval automation can turn a field order with cost impact into a draft change order request.

Frequently asked questions

Does a field order change the contract price?

Usually not. Most contracts treat field orders as minor changes with no cost or time impact. If one does affect cost or time, request a change order promptly and in writing.

Who can issue a field order?

Whoever the contract authorizes, often the architect or the owner's representative. A GC can issue field orders to its subs under the subcontract.

Should I do the work before the field order is signed?

Get it in writing first, even a short email or signed form. A field order exists so work can continue quickly, but it still needs a written record.

What if I disagree that a field order is no-cost?

Note the disagreement on the field order when you sign, then follow the contract's change order or claim process within its deadlines.

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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