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Concrete & Masonry

Concrete and masonry calculators for volume, rebar spacing, CMU blocks, footings, and mix ratios

Calculators & Instant Answers

Interactive tools and pre-calculated results for common scenarios

Calculate concrete volume in cubic yards for slabs, footings, columns, and other shapes

Calculate rebar placement and spacing requirements per ACI 318 structural standards

Calculate number of concrete masonry units needed and estimate mortar requirements

Determine footing dimensions based on soil bearing capacity and structural loads

Calculate concrete mix proportions for desired strength and workability per ACI standards