Drywall Calculator
Use this drywall calculator to estimate drywall sheet quantities from wall area, sheet size, and waste allowance.
What This Calculator Does
This calculator divides the total wall area by the area of each sheet, then adds waste allowance. It is useful for framing estimates, room fit-outs, and renovation planning.
How to Use
- Enter total wall area.
- Enter the sheet area or use the default value.
- Add waste allowance.
- Click calculate.
Example
If you need to cover 64 square metres of wall area and each sheet covers 2.88 square metres, the calculator estimates how many sheets to order.
Why This Calculation Matters
Sheet material is expensive to under-order and frustrating to over-order. A quick drywall estimate makes site planning and pricing easier.
Common Mistakes
- Using floor area instead of actual wall area.
- Ignoring ceilings when they are part of the job.
- Forgetting waste around openings and cuts.
- Not matching the sheet size to the real product.
FAQs
Does this include waste?
Yes, if you enter a waste percentage.
Can I use it for ceilings too?
Yes. Just add the ceiling area into the total area if needed.
Why is sheet area pre-filled?
It gives you a common starting point, but you should still match it to the actual board size you are using.