Paint & Walls
How Much Drywall Do I Need?
We take your room size, work out the board area and turn it into full sheets, screws and compound.
- 01Measure
- 02Adjust
- 03Result
- 04Shop
01 — Measure
Tell us about the job
02 — Adjust
Material buffer
10% covers offcuts around openings and damaged corners.
Before you start — measure this
- Room length
- Room width
- Ceiling height
- Sheet size
03 — Result
56m²
Drywall required
- Screws
- ≈ 608
- Joint compound
- ≈ 25.5 kg
04 — Shopping list
4 × 8 ft sheet = 2.98 m²
19 × 2.98 m²
- Total purchased
- 56.6 m²
- Expected leftover
- 0.6 m²
Optional — planning estimate, not a live price.
Stored in this browser only. No account needed.
How we got this number
- Wall area
- 40.5 m²
- Ceiling area
- 14 m²
- Less openings
- 3.6 m²
- Board area
- 50.9 m²
- + 10% waste
- 56 m²
Planning estimate: this calculation helps you estimate material quantities. Actual requirements vary with site conditions, product coverage, installation method and waste. Confirm with the manufacturer or a qualified professional when appropriate.
What to know about this material
- Use moisture-resistant board in bathrooms and behind kitchen splashbacks.
- Hang boards horizontally on walls to reduce the number of joints to tape.
- Joint compound goes further than people expect — buy one tub, then top up.
Frequently asked
- How many drywall sheets do I need?
- Divide the total board area including waste by the sheet coverage — a standard 4 × 8 ft sheet covers 2.98 m² (32 ft²).
- How many screws per sheet?
- Around 32 per 4 × 8 sheet at 300 mm spacing on studs and edges.
- Do I deduct doors and windows?
- Deduct openings larger than about 1.5 m². Small openings usually produce unusable offcuts anyway.
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What this calculator answers
The highest-intent, lowest-competition searches this page is built to answer outright — every one of them is a quantity question you can settle above without leaving the page.
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Questions this page answers
This page is built around one job: count sheets, screws, joint compound and tape for a room.
- How many sheets of drywall for a 12x12 room?
- How much joint compound per sheet?
- How many drywall screws per sheet?
- 4x8 vs 4x12 drywall sheets which to buy?
Also known as: how much drywall do i need, sheetrock calculator, drywall sheets estimator, plasterboard calculator.