Drywall Calculator
Calculate drywall sheets, tape, mud, and screws needed.
Inputs
Sheets
0
Tape (ft)
0
Mud (buckets)
0
Screws (boxes)
0
How to Use This Drywall Calculator
Our free drywall calculator determines exactly how many sheets, screws, tape, and joint compound you need. Enter your room dimensions for a complete materials list with cost estimates.
Standard sheets come in 4x8 feet (32 sq ft) or 4x12 feet (48 sq ft). Our calculator optimizes sheet count and accounts for waste from cuts and openings.
Tip: For new construction, 1/2 inch drywall is standard for walls and 5/8 inch for ceilings. Moisture-resistant green board is recommended for bathrooms.
Related Topics
Frequently Asked Questions about Drywall Installation
How many sheets of drywall do I need?
Calculate total wall/ceiling area, divide by sheet size (32 sq ft for 4x8), add 10% waste. A 12x12 room needs about 12-15 sheets including ceiling.
How much drywall mud do I need per sheet?
About 1 gallon of pre-mixed compound per 4-5 sheets for a standard 3-coat finish.
What thickness of drywall should I use?
1/2 inch for walls, 5/8 inch for ceilings and fire-rated applications. Use moisture-resistant in bathrooms.
How much does drywall installation cost?
DIY costs $0.40-$0.65 per sq ft. Professional installation costs $1.50-$3.50 per sq ft including finishing.
How many screws do I need per sheet?
About 1 per square foot, roughly 32-36 screws per 4x8 sheet, spaced 12 inches apart along studs.
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