Guide
How to check an AI takeoff
In short
Check an AI takeoff by starting with the lines that carry the most money, confirming each against its mark on the drawing, then hunting for what is drawn only in details, schedules and notes. A takeoff without marks on the sheet cannot be checked quickly, so insist on them.
What to verify first
- Scope. Did it take off your trade, and only your trade? Look for anything another trade carries.
- The big lines. Sort by value and check the top handful: they decide whether the number is right.
- Scale. Measure one known dimension on each sheet type and compare.
- Heights and layers. Wall types, full-height notes, double layers.
- Counts. Spot-check a few rooms of doors, fixtures and devices.
Use the marks on the sheet
A row that links to where it was measured can be checked in seconds: open the sheet, see the highlighted run, judge it. A row with no mark sends you back to measuring it yourself. Field24 marks every row on the drawing for this reason.
Where misses hide
- Items drawn only in a detail or section, such as bearing plates, blocking and flashing.
- Items on elevations with no label.
- Schedules that add quantity the plan does not show.
- Specification sections that add a requirement to a line you already have.
Common questions
How long should checking an AI takeoff take?
Far less than doing it: you are judging marks on the drawing, not measuring. Spend the time on the biggest lines and on details, where misses hide.
What if a quantity looks wrong?
Open its mark, see what was measured, and correct it. With Field24 you can tell it in chat and the row is re-measured.
Keep reading
Last reviewed November 9, 2026. Cite as: AI for Construction, “How to check an AI takeoff,” https://ai-4-construction.com/guides/checking-an-ai-takeoff/