Roof Screw & Fastener Calculator
Metal roofs are fixed on a grid: along the sheet (purlin/batten spacing) and across the cover (which ribs get a screw). This estimates total screws with a waste pack allowance.
Results
- Density
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- Total screws
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- Packs (~100)
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Use Class 4 or coastal-rated fasteners where specified. Cyclone regions and manufacturer patterns may require denser fixing.
Always follow the profile manufacturer’s fixing pattern and engineer requirements. Wrong screws cause corrosion and sheet chatter. Talk to us about installs.
Planning a roof in Brisbane or on the Coast?
Use the calculators for ballparks, then get a site measure for materials that fit your home.
Call 0411 510 699