Concrete Takeoff Software

Take off slab and footing areas, then drive volume from the area and a pour depth to get cubic yards or cubic metres directly. Measure formwork perimeter, rebar as linear runs, and pour counts, so a foundation or slab package produces the volume the supplier actually quotes against.

Slab and footing areas carry their depth, so BOQ lines read in cubic yards or cubic metres and change the moment you edit a thickness; formwork perimeter and rebar runs stay linear alongside them. Every line feeds the Bill of Quantities and traces back to the geometry that produced it, so editing the drawing updates the quantity instead of starting a re-keying job — in the office or on the iPad on site, within the wider construction takeoff software workspace.

Because volume is height-driven, change the slab thickness once and the cubic-yard quantity updates without re-measuring the area. Formwork comes off the perimeter of the same polygon, and rebar runs measure linearly on the calibrated sheet, so the pour, the forms, and the steel all trace back to one drawing.

The math the page runs for you: a measured 148 m² slab at 150 mm thick is 148 × 0.15 = 22.2 m³ of concrete; bump the pour to 200 mm and the same polygon reads 29.6 m³ — no re-measuring, because volume is area-driven. In imperial, a 1,600 sq ft slab at 6 in is 1,600 × 0.5 ÷ 27 = 29.6 cu yd. Add the supplier's waste allowance (typically 5–10%) on the BoQ line, and the formwork edge comes off the same polygon's perimeter, so one shape prices the pour and the forms. The full method is in measuring concrete quantities from drawings.