Construction Calculators

Build with confidence using our Technical & Construction calculators for engineers, contractors, and DIY pros. Size beams, columns, and footings; check soil bearing; compute loads, moments, shear, and deflection. Estimate concrete, rebar, block, brick, tile, paint, and asphalt quantities with waste factors. Calculate earthwork cut/fill, slope, drainage, and retaining wall pressure. Plan MEP with voltage drop, panel load, lighting lux, HVAC airflow, duct sizing, refrigeration tonnage, plumbing flow, and pump head. Evaluate U-values, R-values, condensation risk, and sound transmission. Optimize schedules, costs, and material takeoffs. With hundreds of specialized tools and clear units, turn site questions into fast, defensible answers.