Drywall Calculator — Calculate Sheets & Material Instantly
Calculate the number of drywall sheets, joint compound, tape, screws, and estimated cost for any room. Includes waste factor and opening deductions.
3
Sheet Sizes
10%
Waste Factor
4
Material Types
100%
Free to Use
Enter Room Details
Your Results
Ready to Calculate
Enter your room dimensions and click Calculate to see drywall estimates.
Total Wall Area
0 sq ft
Sheets Needed
0 sheets
Waste Sheets
0 sheets
Total Sheets
0 sheets
Screws Needed
0 lbs
Estimated Material Cost
—
Enter price to calculate
Calculation Summary
Room Dimensions0 × 0 × 0
Sheet Size4x8
Ceiling IncludedYes
Total Area0 sq ft
Material Cost—
Frequently Asked Questions
A drywall calculator estimates the number of drywall sheets needed for a room based on dimensions, sheet size, and openings. It also calculates joint compound, tape, screws, and total material cost.
Calculate the total square footage of walls and ceiling, subtract openings, then divide by the sheet area (32 sq ft for 4x8, 40 sq ft for 4x10, 48 sq ft for 4x12). Add 10% for waste and round up.
4x8 sheets are standard for most rooms. 4x10 and 4x12 sheets reduce seams and are better for taller walls or larger rooms. Choose the size that minimizes waste and matches your ceiling height.
Material costs vary by region and sheet type. Standard drywall costs $12–$20 per sheet. Labor adds $1–$2 per sq ft for hanging and finishing. This calculator provides material cost estimates only.
Typically 28–32 screws per 4x8 sheet. A pound of drywall screws covers approximately 4 sheets. This calculator uses the 1 lb per 4 sheets standard for convenience.