A2 Takeoff Calc

A construction calculator that speaks feet, inches and fractions, with quick takeoffs you can see: a dimensioned floor plan, a wall-by-wall drawing and a 3D view of what you're building.

FEET, INCHES AND FRACTIONS

Type it the way you say it: 5' 3 1/2" + 2' 10 3/4" = 8' 2 1/4". Areas and volumes come out in square feet, square yards, cubic feet or cubic yards. Squares, cubes and roots, parentheses, a tape of everything you worked out, and memory letters A to F. Round to 1/16", 1/8" or whatever you work to.

STUD WALLS

Lay out walls one after another, turning left or right, with doors and windows. Get full-height studs, kings, jacks, headers, cripples, sills and plates, a cut list and what to buy in stock lengths. Drag a window along the wall and watch it reframe.

BLOCK WALLS AND GROUT

Grout for a CMU wall, solid or cells at a spacing, with the cells at corners, wall ends and each side of every door and window. Lintels over openings, either lintel block grouted with the wall or formed and poured, shown as their own concrete. Block count too.

CONCRETE

Slabs, footings, walls, beams, columns and round piers, with waste and pump loss, rounded up to what you order.

SEE IT

Every takeoff has a dimensioned plan (tap a wall to edit it) and a 3D view you can turn and zoom.

CONVERSIONS

Lengths, areas and volumes between imperial and metric.

FREE AND PRIVATE

No ads, no account, no tracking. Nothing you enter leaves your device. A2 Calc is open source under the MIT license.

Use at your own risk: these are estimates. Check every quantity against the plans and with your supplier before you order or bid.