Single-material calculator

Drywall Calculator

Interior drywall planning with 4 x 8, 4 x 9, 4 x 10, or 4 x 12 boards, tape, compound, screws, openings, and waste built in.

Quick presets

Start from a typical North American scenario, then tune the job-specific inputs.

Inputs

Geometry

Measurement Mode Use direct area for one wall, patch scope, or when the square footage is already measured. Room Length (ft) Type it the way you measured it - 16' 6" or 16.5 both work. Room Width (ft) Wall Height (ft)

Board layout

Include ceiling drywall

Board Type Sheet Length Longer sheets reduce butt joints when wall height and access conditions allow. Sheet counts stay area-based planning counts, not a room-by-room cut list.

Include taping + joint compound finish Adds tape, joint compound, and corner-finishing allowance. This is still a planning takeoff, not a level-5 finish spec.

Outside Corner Bead Count (corners) Count only exposed outside drywall corners or returns that need corner bead. Standard inside room corners are taped, not counted as corner bead.

Openings

Door Count (doors) Door Width (ft) Door Height (ft) A common residential door baseline is about 6 ft 8 in. Window Count (windows) Window Width (ft) Window Height (ft)

Advanced settings

Waste Factor (%)

Regional settings

State / Pricing Region Selecting a state adjusts material prices by a state-level cost index, not by store listings in your city. States without an index keep the national baseline, and the estimate says so.

Use this board takeoff after framing layout, openings, and room path are already clear.

Reset inputs

Use this button to recalculate without JavaScript or create a complete, shareable page URL.

2D plan

Schematic quantity basis

2D and 3D previews are schematic. Drag to orbit, and scroll or pinch to zoom when 3D is open.

3D assembly

Optional 3D check

3D is optional here. Use it to sanity-check the base profile after the 2D quantity path is clear.

Wall area 384 sq ft

Ceiling area 168 sq ft

Sheets 19

Screw boxes 1

Corner beads 0

Joint compound buckets 2

Plan details & review

Planning assumptions

Included scope: Walls and ceiling drywall.

Planning assumptions · 4

Opening deductions use simple rectangular door and window areas and do not add closet returns, soffits, backing strips, or small partition offsets back into the drywall takeoff.
Drywall calculator treats standard, mold-resistant, and Type X boards as dry-area planning selections; shower walls and other continuously wet tile substrates still need cement/backer assemblies rather than ordinary gypsum board.
Screw boxes assume a typical residential fastening pattern and a conservative 5 lb box count. Framing spacing, adhesive use, board orientation, and required finish level can change actual quantities.
The BOM rounds packaged materials to whole purchase units such as gallons, bags, boxes, buckets, rolls, cartons, tubes, jars, bundles, or kits, so bought quantity can exceed the exact theoretical coverage shown by the area metrics.

Not included / Trade review

2 total scope notes to read before ordering or contractor handoff.

How pricing works

Schematic drywall scope for a 14 ft x 12 ft room with 8 ft walls, 1 door, 1 window, 4 x 8 ft sheets, ceiling included, and finishing included.

Material estimate for the quantities in this plan.

Need local install pricing?

Save this estimate to reopen it later, share the link or the plain-text takeoff, or export a PDF. Pin to compare stacks alternate inputs side by side.

Compare contractor quotes

Material list

Your build list

Each line shows a purchase quantity, a coverage amount, or a planning allowance - the line says which. Check pack sizes and your site conditions before you order.

Material	Assembly	Unit	Qty	Unit price	Total	Source
1/2 in drywall sheets Calculator default	walls and ceiling drywall	sheet	19	$12.98	$246.62	Home Depot Shopping-ready Price source: Retailer pricePrice as of: 06/05/2026 — price may have changed - verify before orderingRetailer: Home Depot
Quantity basis The visible row quantity is a purchase or ordering quantity. Qty: 19 Quantity type: Purchase quantity Purchase quantity: 19 Coverage: Waste-adjusted board coverage Waste factor: 10%
Drywall screws Calculator default	walls and ceiling drywall	box	1 covers 1 box	$24.98Not editable: priced as a package	$24.98	Home Depot Shopping-ready Price source: Retailer pricePrice as of: 06/05/2026 — price may have changed - verify before orderingRetailer: Home Depot
Quantity basis The visible row quantity is a purchase or ordering quantity. Qty: 1 Quantity type: Purchase quantity Installed / coverage quantity: 1 Purchase quantity: 1 Waste quantity: 0 Coverage: Estimated fastening schedule; 1,190 screws per 5 lb box Waste factor: 5%
Joint compound buckets Calculator default	walls and ceiling drywall	bucket	2	$22.93	$45.86	Home Depot Shopping-ready Price source: Retailer pricePrice as of: 06/05/2026 — price may have changed - verify before orderingRetailer: Home Depot
Quantity basis The visible row quantity is a purchase or ordering quantity. Qty: 2 Quantity type: Purchase quantity Purchase quantity: 2 Coverage: Board coverage for finishing Waste factor: 5%
Drywall joint tape Calculator default	walls and ceiling drywall	roll	2	$9.28	$18.56	Home Depot Shopping-ready Price source: Retailer pricePrice as of: 06/05/2026 — price may have changed - verify before orderingRetailer: Home Depot
Quantity basis The visible row quantity is a purchase or ordering quantity. Qty: 2 Quantity type: Purchase quantity Purchase quantity: 2 Coverage: Seam tape allowance for the finished board area Waste factor: 5%

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Estimated materials total$336.02

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Current takeoff: 19 drywall sheets, 2 joint compound buckets, 2 tape rolls, and 1 screw box for 552 sq ft. Use this board takeoff after framing layout, openings, and room path are already clear.

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