Estimate key finish materials for converting a rectangular garage into conditioned living space. Using floor area, perimeter, ceiling height, openings, and waste, the calculator reports drywall sheets, insulation area, flooring coverage, and paint volume for early budgeting and supplier discussions.
The takeoff covers wall and ceiling finish surfaces, wall insulation, flooring, and finish paint. It does not include framing changes, fire-rated assemblies, mechanical systems, cabinets, or exterior door infill.
Garage conversions often have code-specific fire separation, insulation, egress, moisture, and floor-height requirements. Confirm the assembly before purchasing.
For a 440 sq ft garage with 86 ft of 8 ft walls, 12% openings, one drywall layer, and 10% waste:
Yes. It includes the entered floor area as ceiling area plus net wall area.
No. The displayed insulation area covers walls only because ceiling assemblies vary widely.
Paint is calculated from coverage and whole-gallon rounding; application loss should be reflected in the coverage assumption if needed.
Set drywall layers to two, but confirm the exact tested assembly and which surfaces require it.
Only indirectly in net wall finish area. Studs, sheathing, exterior cladding, windows, and structural details are not included.
| Material | Assumption |
|---|---|
| Drywall | 4 × 8 ft sheets |
| Wall insulation | Net wall surface only |
| Flooring | Floor area plus waste |
| Finish paint | 350 sq ft per gallon per coat |