# How to Write a Subcontractor Scope of Work (With Checklist)

> A subcontractor scope of work defines what a trade must furnish and install. List each item with its drawing and spec references, exclusions, and interfaces.

- URL: https://consight.ai/articles/how-to-write-a-subcontractor-scope-of-work
- Published: 2026-09-30
- Updated: 2026-10-12
- Topic: [Scope of Work](https://consight.ai/articles/topics/scope-of-work)
- Author: Stewart Toubia

**Short answer:** To write a subcontractor scope of work, start from the drawings and specifications for one bid package. List the work the trade must furnish and install as separate, priceable lines. Give each line its drawing sheet and spec section.

Then state the inclusions bidders often leave out, the exclusions that belong to other trades, and the alternates. Name who handles each interface between trades, such as blocking, sleeves and patching. End with the bid instructions, so every bid comes back in the same format and you can level the bids line by line.

## Key takeaways

- Write the scope per bid package, organized so each line can be priced and compared.
- Spell out the gray areas between trades. That’s where scope gaps start.
- Reuse a scope template for repeat trades, then edit it for project specifics.

## What should a subcontractor scope of work include?

1. **Package name and cost code.** For example, CSI MasterFormat 31 20 00 Earthwork.
2. **Governing documents.** Drawing sheets, specification sections and addenda the bid must cover.
3. **Line-item scope.** The specific work to furnish and install, written as separate, priceable items.
4. **Specific inclusions.** Items bidders commonly leave out, stated explicitly.
5. **Specific exclusions.** Work carried by another package or by the GC.
6. **Alternates and unit prices.** What should be priced separately from the base bid.
7. **Trade interfaces.** Who provides blocking, sleeves, patching, temporary protection, cleanup and hoisting.
8. **General requirements.** Schedule, mobilizations, insurance, bonding, safety and site logistics.
9. **Bid instructions.** The bid form to use, breakouts required and how to list qualifications.

## Subcontractor scope of work checklist

- Every drawing sheet and spec section for the trade is referenced.
- Each scope item is specific enough to price on its own line.
- Gray-area items between adjacent trades are assigned to one package.
- Alternates and allowances are separated from the base bid.
- Addenda issued so far are reflected.
- The bid form matches the scope lines, so bids come back comparable.

## Why does the scope of work matter for bid leveling?

[Bid leveling](https://consight.ai/articles/mastering-bid-leveling-a-key-to-construction-project-success) compares every subcontractor against the same scope. If the scope is vague, each bidder interprets it differently and you end up comparing different jobs. A clear, line-item scope turns bid leveling into a check of coverage: who carried each line, who excluded it, and what it costs to plug the difference. Read [how to find scope gaps in subcontractor bids](https://consight.ai/articles/how-to-find-scope-gaps-in-subcontractor-bids).

## Can AI write a subcontractor scope of work?

AI can produce a strong first draft. In Consight, [scope generation](https://consight.ai/features/generate-scope) reads your plans and specifications and drafts bid packages, scopes of work and bid forms. Estimators then review and edit every line, add company standards and project-specific items, and use that same scope to [level the bids](https://consight.ai/bid-leveling-software). The estimator’s judgment still decides what goes out.

## Frequently asked questions

### Who writes the subcontractor scope of work?

Usually the general contractor’s estimator or preconstruction manager for each bid package, reviewed by the project team.

### Should the scope of work match the bid form?

Yes. When bid form lines mirror the scope lines, subcontractor bids come back in a format you can compare directly.

### How detailed should a scope of work be?

Detailed enough that two bidders reading it would price the same work. If an item could be argued either way, write it down.