Measurement unit
Roof plane
Feet, Metres, Inches, Centimetres, Millimetres
Roof Sheet Calculator
Lay out roofing sheets with overlaps and count purchase sheets.
Open this toolRoofing sheets overlap, so their listed width is not the width each sheet adds to the roof.
Measure along the slope and enter the sheet profile's usable dimensions and overlaps. The order count should reflect actual cover, not just the nominal sheet area.
Inputs and controls
Slope length
Roof plane
Allowed range: 0.001 to 100000
Plane width
Roof plane
Allowed range: 0.001 to 100000
Identical roof planes
Roof plane
Allowed range: 1 to 100
Sheet length
Sheet and overlap · ft
Allowed range: 0.1 to 100
Sheet width
Sheet and overlap · ft
Allowed range: 0.1 to 100
End overlap
Sheet and overlap · in
Allowed range: 0 to 100
Side overlap
Sheet and overlap · in
Allowed range: 0 to 100
Ordering allowance
Sheet and overlap · %
Allowed range: 0 to 100
Added once to the measured requirement.
Price per sheet
Sheet quote · PKR / sheet
Allowed range: 0 to 1000000000
Optional. Enter your own supplier quote.
How to use
- Choose measurement unit. Enter slope length, plane width and identical roof planes.
- Enter sheet length, sheet width, end overlap, side overlap and ordering allowance.
- Enter price per sheet.
- Select Calculate estimate. Read the returned values alongside the assumptions below before copying, exporting or acting on the result.
Why use this tool
Separating nominal size from effective cover helps you compare profiles without accidentally counting overlap as useful coverage.
Before relying on the result
Enter measured slope length, not the horizontal footprint. Effective cover depends on your sheet profile.
Tool limitations
Enter measured slope length, not the horizontal footprint. Effective cover depends on your sheet profile.
Questions
Should I enter the horizontal roof length?
Use the measured slope length for the covered direction. A horizontal footprint can be shorter than the surface the sheets must cover.
What should I check before using Roof Sheet Calculator?
Check Measurement unit, Slope length, Plane width and Identical roof planes. Use the exact units shown beside the controls and replace any example values with your own inputs.
Source page last modified: 2026-10-01T14:08:57+00:00. This profile describes the tool; use its page to run it.
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