Price RangerDrywall
How much drywall do I need
Last reviewed 2026-10-20. Estimates, not legal or tax advice.
Add the wall area, subtract openings, then divide by 32 square feet for a 4 by 8 sheet and add waste. Count screws, tape, and compound from that same area.
Steps
- Measure length, width, and wall height.
- Subtract doors and windows.
- Add the ceiling only if you are boarding it.
- Divide by the sheet size and round up.
- Add about 10% for cuts before you buy.
A 12 by 10 foot room
A 12 by 10 foot room with 8 foot walls and one 3 by 6.8 foot door is 331.6 square feet of wall.
Add 10% for cuts and waste and you need 12 sheets of 4 by 8.
The same area is about 332 screws, 123 feet of tape, and 46 pounds of joint compound.
Put your own sheet price and your hourly rate on those lines. This example is a method, not a market price.
Easy to miss
- Forgetting to subtract the door and then buying a spare sheet you cannot return.
- Using wall area for the ceiling too when you are not boarding it.
- Ordering compound by the bucket color instead of by the area.
Further reading
- Gypsum Association
Gypsum Association
The trade group publishes finish levels and install guidance you can check before you price hanging and finishing.
- Fall protection
OSHA
Exterior and ceiling work often needs fall protection, and that time is part of the labor line.
- Contractors State License Board
California CSLB
California's license board states which jobs need a contractor license before you price them.