Corrugated & Trapezoidal Metal Roofing Sheet & Fastener Estimator
Calculate corrugated galvalume and trapezoidal steel roof sheets, effective cover width overlap, self-drilling EPDM washer tek screws, and ridge cap trims.
Total Metal Roofing Sheets Required
Calculator Inputs
Total Metal Roofing Sheets Required
Self-Drilling Tek Screws with EPDM Washers
Ridge Capping Flashing Length (m)
Total Pitched Roof Area (m²)
Sheets per Pitch Slope
Roof Area vs. Metal Sheets Breakdown
Effective sheet coverage is narrower than nominal width due to mandatory 1-to-2 corrugation side lap overlaps.
All engineering calculations, structural estimates, and electrical sizing metrics are provided for preliminary estimation only. Always ensure compliance with relevant statutory building codes and occupational safety standards, verified by a certified professional engineer before practical implementation.
Calculation Methodology
Effective Sheet Width = Total Width - Side Lap Width. Total Sheets = Ceil(Roof Width / Effective Width). Tek Screws = Total Area * 5 screws/m².
Frequently Asked Questions
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