Can I use Room Layout area here?
Yes. Room Layout wall and ceiling area can feed this calculator directly instead of entering area manually.
Drywall Calculator
Estimate drywall sheets from wall and ceiling area.
You'll need — sheets of drywall for — sq ft.
Area source
Use the active Room Layout's wall and floor area, or override manually. Ceiling area assumes a flat ceiling equal to the floor footprint.
Chained room layout
Run Room Layout first to prefill drywall with the active project's wall and floor area.
Drywall inputs
Manual area entry stays available even when chained from Room Layout.
You'll need — sheets of drywall for — sq ft.
You'll need
Drywall results
Warnings
- ERROR Enter a wall or ceiling area greater than zero.
- INFO Material estimate only. Verify layout, cuts, and field conditions before purchase.
Detail values
- Total area
- — sq ft
- Sheet area
- — sq ft
- Base sheets
- —
- Joint tape
- — ft
Assumptions
- Sheet size: 4 × 8 ft
- Estimated waste: 10% for an average project
- Joint tape roll: 250 ft per roll (250 ft and 500 ft are both commonly stocked). Footage is half each sheet's perimeter -- seam geometry, since every seam is shared by two sheets -- not an estimating coefficient.
Included: drywall sheets, joint tape, waste allowance.
Not included: labor, delivery, permits, disposal of waste material, joint compound, corner bead, screws and primer.
Material List
About this calculator
Enter total area, pick a sheet size, and set a waste factor to get a purchase-ready sheet count.
FAQ
Why is sheet size editable?
4x8, 4x10, and 4x12 sheets are all common. Changing the sheet size changes the coverage per sheet and the rounded purchase count.
Does the sheet count include waste?
Yes. The waste percentage is applied to total area before dividing by sheet coverage, then the result is rounded up to whole sheets.
Disclaimer
Material estimate only. Verify field conditions, ceiling height, and framing layout locally.