Shape
Slab
Footing / wall
Column / post hole
Round slab
Curb & gutter
Most common pour
Length
ft
in
yd
Width
ft
in
yd
Depth
ft
in
yd
Outer diameter
ft
in
yd
Inner diameter (hollow tube)
ft
in
yd
Set > 0 for sonotube forms. Leave 0 for solid pours.
Height / depth
ft
in
yd
Diameter
ft
in
yd
Curb height
ft
in
yd
Vertical face above road surface
Flag thickness
ft
in
yd
Horizontal slab at top of curb
Gutter depth
ft
in
yd
Gutter width
ft
in
yd
Waste / overage (%)
Standard 10% covers spills, uneven forms, and leftover in the truck
Number of identical pours
Multiply for repeated pours — e.g. 8 fence post holes of the same size
1.63
yd³
75
80lb bags
96
60lb bags
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