Drywall Calculator
Calculate drywall sheets, joint compound, and tape needed for your project. Estimate costs and materials for walls and ceilings.
Step 1: Room Dimensions
Drywall Sheet Sizes
Standard drywall sheets are 4×8 feet (32 sq ft) or 4×12 feet (48 sq ft). Our calculator uses 4×8 sheets by default with 10% waste factor included.
Step 2: Materials & Cost
Material Estimates
Joint compound: ~1 gallon per 100 sq ft. Drywall tape: ~100 feet per 100 sq ft. Screws: ~1 lb per 100 sq ft.
Drywall Materials Estimate
Summary
Materials List
Cost Breakdown
Total Estimated Cost
$285.00
18 sheets (4×8 ft) required
Drywall Sheets
18 sheets
Joint Compound
5 gallons
Drywall Tape
180 feet
Total Area
576 sq ft
Complete Materials List
| Material | Quantity | Unit Price | Total Cost | Notes |
|---|
Cost Breakdown by Area
Drywall Calculation Formula
Sheets = (Total Area ÷ Sheet Area) × (1 + Waste%)
Calculate total wall/ceiling area, divide by sheet area, then add waste factor. Joint compound: 1 gallon per 100 sq ft. Tape: 100 feet per 100 sq ft.
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