Free Construction Tools & Calculators

Professional Construction Calculators — Free & Instant

How E How's construction tool suite covers material estimation, structural analysis, and project costing. Our concrete calculator estimates volume for slabs, columns, footings, and beams. The roofing calculator computes shingles and materials for any pitch. For structural work, our steel beam calculator provides load and deflection analysis per AISC standards.

Project Cost & Estimation

The project cost estimator provides labour and material cost breakdowns by trade. Our excavation calculator computes cut and fill volumes with soil expansion factors. For architecture and design tools, see our Architecture tools and Surveying tools.