Concrete, framing, electrical, HVAC, structural, and landscaping calculations for builders and DIYers.
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Material estimates, cost calculations, and structural measurements for real building projects. I built these because nothing's worse than being at the supply store doing math on the back of a receipt — or ordering 20% too little concrete and finding out when the truck's already poured half the slab.
From concrete volumes to beam deflection, every tool uses industry-standard formulas and building code references (IRC, ASCE 7, NEC). Whether you're a contractor running a job or a homeowner tackling a weekend project, these calculators give you the numbers you need before you cut the first board.
Cubic yards, bag counts, and cost estimates for concrete slabs, footings, and columns. Built-in waste factors and rebar spacing so your material order is right the first time.
Wind loads, snow loads, and beam deflection using ASCE 7 and standard engineering formulas. The kind of math you need when pulling permits or verifying structural specs.
HVAC sizing, wire gauge selection, and pipe flow calculations for plumbing and fire protection. NEC-based where applicable.
Soil amendment volumes, fill dirt quantities, and grading calculations for outdoor and site work projects.