Calculators for outdoor building projects. The deck calculator counts deck boards, linear feet, and joists for a rectangular deck. The fence calculator counts posts, rails, pickets, and bags of concrete for a straight run. The stair calculator works out the riser height, the number of treads, and the stringer length from the total rise, and the board foot calculator turns lumber sizes into board feet (thickness in inches x width in inches x length in feet / 12). The results are estimates: check your local building code, and use a pro for structural work.
Enter the thickness, width, length, and number of boards to get board feet, linear feet, and cubic feet: ten 1 x 6 boards 8 ft long are 40 board feet. Includes a board feet chart for common lumber sizes, nominal vs actual sizes, and hardwood thicknesses from 4/4 to 16/4.
Enter the total rise and your riser and tread limits to get the number of risers and treads, exact riser height, total run, and stringer length. Includes IRC stair limits and deck stair stringer rules.
Enter your deck size, board width, gap, and board length to get the number of deck boards, linear feet, and joists. Includes rows by width, gap and joist spacing rules, and a screw count.
Enter your fence length, post spacing, and picket size to get posts, rails, pickets, and concrete bags. Includes pickets per 8 ft section, post hole guidelines, and how much concrete a post really takes.