MortarDesk
Free calculators. Every formula and price range is cited on the tool page.
Square Footage Conversion Calculator
Enter a rectangle, L-shape, circle or triangle in feet-inches or metres; get sq ft, sq m, sq yd, acres and the boxes to order with waste. Open the calculator
Deck Joist Span Calculator (Floor Joists and Rafters Too)
Pick member, species, size, spacing and load case; get the maximum clear span in feet-inches from the 2021 IRC tables, with the full table shown. Open the calculator
Material Coverage Calculator
Enter area, depth and waste; get cubic yards, then convert to pounds with the density table. Open the calculator