How to Read a Construction Estimate
Allowances, exclusions, unit prices, builder fee and the fine print — how to read a construction estimate closely enough to compare two bids honestly.
By Tireless Construction ·
Last updated
An estimate is a document with a structure, not just a number at the bottom. Most of the disagreements that surface later in a build are visible in the estimate on day one, to a homeowner who knows which parts to read carefully.
Allowances
An allowance is a placeholder for a decision you have not made yet: flooring, cabinetry, plumbing fixtures, lighting, appliances. If an allowance is unrealistically low, the estimate looks competitive and the final invoice does not. Ask what specific product each allowance would actually buy, and price a real selection against it.
Exclusions
The exclusions list is the most informative page in the document and the one homeowners skip. Site work, utility connections, landscaping, driveways, permits, impact fees and appliances are commonly excluded. Two bids can differ mainly in what they exclude.
Unit prices and assumptions
Look for stated assumptions — soil type, excavation depth, rock quantity, number of inspections. Where the estimate carries a unit price for rock removal or additional fill, it is telling you exactly where the number can move and by how much.
The builder's fee
Fixed price, cost-plus with a percentage, or cost-plus with a cap all shift risk differently between you and the builder. None is inherently better, but you should know which you are signing and how the fee is calculated on change orders.
| Section | Question to ask |
|---|---|
| Allowances | What product would this figure actually buy? |
| Exclusions | What is not in this number that will still have to be paid? |
| Site work | Is this estimated or based on a site evaluation? |
| Change orders | How are they priced and approved? |
| Fee | Fixed, percentage, or capped — and applied to what? |