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Calculate roofing material quantities with code compliance
Material Calculators help you determine the exact quantities of roofing materials needed for a project based on roof measurements and local building code requirements.
Each calculator factors in jurisdiction-specific code requirements so your material order aligns with code requirements — no over-ordering or under-ordering.
Ice & Water Shield
Calculate linear feet and squares based on eave/valley/rake measurements and State Farm formula requirements.
Underlayment
Determine rolls needed based on roof area, overlap requirements, and code-specified installation methods.
Drip Edge & Starter
Calculate linear footage for drip edge and starter strip based on eave and rake measurements.
Ridge & Hip Cap
Determine bundles needed based on ridge and hip length measurements.
Select a calculator
Choose the material type you need to calculate.
Enter measurements
Input roof dimensions from your measurement report or field notes.
Set jurisdiction
Enter the project ZIP code to apply local code requirements.
Review results
Get quantities, waste factors, and code citations for your material order.