General Construction Calculators

Stairs, ramps, masonry, lumber take-offs, board feet and whole-project costing.

10 free general construction calculators — no sign-up, instant results.

Block Calculator

Calculate the number of concrete blocks (CMU) and mortar bags needed for a concrete block wall.

Convert lumber dimensions (thickness, width, length) into board feet. Calculate volume in board feet and cubic feet.

Calculate the number of bricks and mortar bags needed for a brick wall. Specify wall dimensions and brick size.

Estimate project cost with line items, labor, waste, tax, and contingency. Create detailed construction budgets and material take-offs.

Calculate board feet, linear feet, and cost for lumber by quantity, size, and length. Plan framing, decking, and material costs.

Calculate the amount of mortar (bags and weight) needed for masonry work. Account for wall area, joint thickness, and unit type.

Calculate ramp slope ratio and percentage. Determine if a ramp meets ADA accessibility standards (1:12 maximum).

Calculate the number of risers, tread depth, and stringer length for a complete staircase layout.

Calculate stringer length, step notches, and board feet needed to build staircase stringers.

Calculate studs, plates, headers, and board feet needed to frame a stud wall. Account for height, length, spacing, and door/window openings.