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Concrete Volume & Bags
Concrete Volume & Bags
Volume of slabs and columns plus bag count by yield
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Slab
Column
Length (ft)
Width (ft)
Slab depth (in)
Bag yield (ft³)
Waste %
60 lb bag ≈ 0.45 ft³ · 80 lb bag ≈ 0.60 ft³.
slab = L·W·D/12 · column = π(r²)·h
Volume
33.33 ft³
Cubic yards
1.235
Cubic metres
0.944
Bags to buy
62
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Concrete shape
Outline of the slab or column shape with the volume labelled.
33.33 ft³ · 1.235 yd³ · 0.944 m³
