Scope of Work
A scope of work (SOW) is a detailed written description of all work to be performed in a construction project — what will be built, what materials will be used, who is responsible for each item, and what quality standards apply. It forms the foundation of the construction contract and is the primary reference for resolving disputes about what was included in the price.
Updated July 13, 2026
Key Facts
- 1A well-written SOW prevents the most common construction dispute: 'I thought that was included'
- 2Exclusions are as important as inclusions — explicitly listing what is NOT in scope prevents contractors from adding extras at premium prices
- 3For commercial buildouts, the SOW should reference the construction drawings by revision date so both parties are aligned on the design being priced
What a Commercial Buildout SOW Should Include
- Division-by-division breakdown (concrete, framing, drywall, electrical, plumbing, HVAC, flooring, ceilings, paint, millwork, finishes)
- Material specifications for each element (brand, model, grade, or approved equals)
- Finish schedule cross-referenced to drawings (which floor finish goes where, which paint color on which surface)
- Explicit inclusions: who supplies and installs what
- Explicit exclusions: what is owner-furnished, owner-installed, or outside the contract
- Reference to the permit set drawing revision being used for pricing
- Allowances for items where the final material selection is pending
Allowances vs. Specified Items in the SOW
When a material is not yet selected at the time of contracting, the SOW typically includes an 'allowance' — a dollar amount the contractor budgets for that item. If actual costs exceed the allowance, the difference is typically a change order; if less, the savings flow back to the owner. Common allowances: flooring selection, light fixture upgrades, hardware upgrades, and custom millwork.
Allowances are a double-edged sword — they enable contracting before all decisions are made, but they also create change order opportunities if allowances are set unrealistically low. Insist on realistic allowances based on actual market pricing for the materials you intend to use.
Frequently Asked Questions
Who writes the scope of work for a commercial buildout?
Ideally, the architect writes the SOW as part of the construction documents. On smaller projects without an architect, the GC or tenant may draft it. Always have it reviewed by someone familiar with construction contracts before signing.
Can the scope of work be changed after the contract is signed?
Yes, but only through a change order. Any work not in the original SOW requires a signed change order with agreed pricing before it proceeds. This is the mechanism by which the contract adapts to changed conditions or owner decisions.