The Drywall Sheet and Screws Sizer computes complete wall and ceiling sheetrock takeoffs based on room length, width, ceiling height, and panel dimensions.

### Room Takeoff Geometry & Fastener Math Rather than guessing total square footage, this calculator models the physical room geometry: $$\text{Perimeter} = 2 \times (\text{Length} + \text{Width})$$ $$\text{Wall Area} = \text{Perimeter} \times \text{Ceiling Height}$$ $$\text{Ceiling Area} = \text{Include Ceiling} \times (\text{Length} \times \text{Width})$$ $$\text{Total Area with 10% Waste} = (\text{Wall Area} + \text{Ceiling Area}) \times 1.10$$ $$\text{Panels Needed} = \left\lceil \frac{\text{Total Area with Waste}}{\text{Panel Area}} \right\rceil$$ $$\text{Drywall Screws} = \text{Panels Needed} \times 32 \quad (32 \text{ screws per panel on 16" framing})$$

### Worked Room Takeoff Example Calculating materials for a 20 ft long by 14 ft wide room with 8 ft ceilings, including the ceiling, using standard $4\times 8$ ($32\text{ sq ft}$) sheets: - **Perimeter**: $2 \times (20 + 14) = 68\text{ linear feet}$ - **Wall Area**: $68 \times 8 = 544\text{ sq ft}$ - **Ceiling Area**: $20 \times 14 = 280\text{ sq ft}$ - **Total Surface with 10% Scrap**: $(544 + 280) \times 1.10 = 906.4\text{ sq ft}$ - **Sheets Needed**: $\lceil 906.4 / 32 \rceil = 29$ panels ($4\times 8$) - **Drywall Screws**: $29 \times 32 = 928$ screws - **Joint Compound**: $\lceil 906.4 \times 0.053 \rceil = 49$ gallons (approx ten 5-gallon buckets)

### Local Browser Execution & Privacy All formulas execute client-side in your web browser. No room dimensions, home blueprints, or contractor estimates are saved or uploaded to any server.