Construction Materials Calculators
Construction materials calculators. Enter dimensions, get bag counts, ready-mix yards, gravel, rebar, and cost estimates.
Try it — Concrete Slab
Slab — total concrete
1.36 yd³
62 × 80 lb bags
Materials only. Excludes labour, forms, delivery, pump, finishing. Structural work requires local code compliance and engineer drawings.
ft
ft
in
slabs
10%
Net volume33.33 ft³
Gross volume36.67 ft³
Cubic yards1.36 yd³
Cubic meters1.039 m³
Net volume33.33 ft³
Gross volume36.67 ft³
Cubic yards1.36 yd³
Ready-mix order1.5 yd³
80 lb bags62
60 lb bags82
40 lb bags123
Cost (80 lb)$403
Cost (60 lb)$410
Cost (40 lb)$431
Cost (ready-mix)$218
Cost band (materials only — min/max across all options)
$218to$431
Edit price assumptions
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Change any dimension — the whole order updates. Full slab page → for reference tables and FAQ.
Concrete tools — 10
01Concrete Slab/concrete/slab/concrete/slab02Bags of Concrete Per Yard/concrete/bags/concrete/bags03Fence Post Concrete/concrete/fence-post/concrete/fence-post04Concrete Footing/concrete/footing/concrete/footing05Concrete Driveway Cost/concrete/driveway-cost/concrete/driveway-cost06Concrete Stairs/concrete/stairs/concrete/stairs07Concrete Column/concrete/column/concrete/column08Gravel Base for Concrete Slab/concrete/gravel-base/concrete/gravel-base09Rebar Spacing/concrete/rebar/concrete/rebar10Concrete Mix Ratio/concrete/mix-ratio/concrete/mix-ratio
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