How many metal roofing screws do you need?
Use this calculator to estimate the number of screws and complete packs for your metal roof. Enter the actual roof surface area, the distance between fastening rows and the spacing along each row. Add fasteners for edges, overlaps and trim, then choose a reserve.
Choose the right ALBO roofing screw
Select the length and color specified for your roof panel and substrate. Pack quantity varies by SKU. A quantity estimate does not establish screw compatibility or a structural fastening pattern; use the roof manufacturer’s installation specification.
Roofing screw calculator formula
Base quantity = roof surface area ÷ (row spacing × screw spacing). Add edge and trim fasteners, apply your reserve, then round up to whole packs. US and metric inputs are supported.
