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Build budget with contingency calculator

A realistic total for any build: parts, labor, permits, a contingency and tax.

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A contingency of 10 to 20% covers price changes and surprises; first-time builds often need the high end. Get real quotes for the biggest items before you commit.

Stop working out one number at a time

A calculator is a quick check. A concept draft works these numbers out together with specs, drawings, a priced parts list, build phases and the rules to check, and updates them all when you change something.

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