About CalcDesk

CalcDesk builds free, fast calculators for homeowners and DIYers planning roofing, masonry, landscaping and energy projects. Every calculator shows the formula it uses so you can check the math yourself.

Our estimates are for planning only. Material densities, coverage rates and prices vary by product and region, so always confirm final quantities with your supplier or a licensed contractor.

Found an error or want a new calculator? Contact us.