- Spec'd but not drawn. The spec requires an item and no sheet shows it.
- Drawn but not spec'd. A sheet shows an item your section never mentions.
- Spec and drawings disagree. For example, the spec calls for one mount type and the plans show another.
- Quantity mismatch. Two sheets give two different counts for the same item.
- Missing sizes. The geometry is clear but no size is given, so it asks.
- Manufacturer questions. The basis-of-design maker is not one you carry. It tells you what the spec says about equals and substitutions.
- By others. A plan note marks an item as owner furnished, not in contract or by others. It proposes the exclusion and shows the note.
- No drawings. The packet has no plan sheets, so the spec could not be checked against them.
When it cannot read a sheet
If it cannot read a set of sheets well enough, it says so. That is not a claim that an item is missing. Look at those sheets yourself.
Reading your takeoff · Updated 11 Nov 2026