Enter roof dimensions and sheet parameters, then click Calculate.

Corrugated roofing sheets are a popular choice for roofs due to their durability, lightweight nature, and cost-effectiveness. This calculator helps estimate the number of sheets needed for a roof based on its dimensions, sheet size, overlap, and slope. The effective width of a sheet is calculated by subtracting the overlap from the sheet width. The roof area is adjusted for the slope to get the effective area. Additional sheets are added for waste (typically 5-10%) to account for cutting and fitting around edges, chimneys, and skylights. The calculator also estimates fasteners and ridge/eave elements. This tool is essential for contractors, builders, and DIY enthusiasts planning a corrugated roofing project.

1. Enter the Roof Width and Roof Length in meters.
2. Enter the Sheet Width and Sheet Length in meters.
3. Enter the Overlap between sheets in meters (typically 0.10-0.20 m).
4. Enter the Roof Slope in degrees (3°–60°).
5. Optionally enter the Price per Sheet and Waste Factor.
6. Click Calculate Roofing to see the results.
7. The result shows sheets needed, fasteners, and estimated cost.
8. Click Reset to restore default example values.