🔨 Contractor Tools
Materials Cost Calculator
List materials, quantities, and unit costs — then add your markup for the client quote.
Materials list
Fill in the details and click calculate.
Frequently Asked Questions
How much should I add for material waste?
Standard waste factors: 5% for dimensional lumber, 10% for tile and flooring (more with diagonal layouts), 10–15% for roofing on cut-up roofs. Waste on the estimate beats a second supply run mid-job.
What markup do contractors put on materials?
Typically 15–35%. The markup pays for takeoffs, ordering, delivery coordination, storage, warranty on defects, and the financing gap between buying materials and getting paid.
How do I handle volatile material prices in quotes?
Cap quote validity at 15–30 days and include an escalation clause for commodity items like lumber and copper. On long jobs, lock supplier pricing when the contract signs.
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