Calculate geometric concrete volume and a separate ordering allowance.
Finished concrete dimension.
Finished concrete dimension.
Use the specified design thickness.
A planning allowance for dimensional variation and handling—not a structural factor.
Net geometric volume
3.84m³
Volume including allowance
4.11m³
A rectangular prism with uniform thickness. Thickened edges, beams, openings, uneven subgrade, delivery increments and structural requirements are excluded.