Tool categoryRecently expanded
Home & DIY
Home-improvement math — paint, flooring, lumber, and material-quantity calculators for DIY projects.
Tools
Home & DIY
Featured guides in this category — tools with a deeper how-to-use writeup
Air conditioner size calculator Home & DIY Open Appliance Wattage Use Reference Reference typical appliance wattage and estimated daily energy use for common household loads. Open Baseboard/trim length calculator Home & DIY Open Beam sizing reference Home & DIY Open Brick/block quantity calculator Home & DIY Open Carpet area calculator Home & DIY Open Circuit breaker size selector Home & DIY Open Concrete Mix Ratio Reference by Use Case Compare common concrete mix ratios by use case strength estimate and component proportions. Open Crown molding angle calculator Home & DIY Open Deck board calculator Home & DIY Open Drywall sheet calculator Home & DIY Open Ductwork size calculator Home & DIY Open Electrical load calculator (home) Home & DIY Open Fence material calculator Home & DIY Open Flooring material calculator Home & DIY Open Gutter length estimator Home & DIY Open HVAC BTU calculator Home & DIY Open Joist span calculator Home & DIY Open Mortar mix calculator Home & DIY Open Nail and Screw Length Guide by Application Find typical nail and screw lengths for framing decking drywall trim and cabinet applications. Open Pipe flow rate calculator Home & DIY Open Radiator BTU calculator Home & DIY Open Roof area calculator Home & DIY Open Roof pitch calculator Home & DIY Open Room area calculator Home & DIY Open Room volume calculator Home & DIY Open Sandpaper Grit Reference Guide Search sandpaper grit ranges by FEPA CAMI grade and typical sanding or finishing use. Open Sprinkler coverage calculator Home & DIY Open Staircase rise/run calculator Home & DIY Open Stud spacing calculator Home & DIY Open Water heater size calculator Home & DIY Open