CalcLoft’s 17-Tool Home Improvement Math Kit

Field notes

Users provide project dimensions and related details—such as doors and windows for paint or joint width for grout—and receive material quantities in the relevant purchasing units. The homepage groups 17 tools into practical areas including finishing, tile and flooring, concrete and masonry, outdoor projects, and climate control. It also documents a local-browser calculation model and recommends adding 5–10% extra material for waste, mistakes, irregular spaces, and future repairs.