Project workflow
Separate design decisions from material quantity
Use project dimensions
Enter the concrete or masonry dimensions from the actual project design. Quantity calculators do not determine structural size, reinforcement or code compliance.
Calculate each geometry separately
Slabs are rectangular prisms, columns are cylinders, steps can require a stacked-prism model and block walls use modular face dimensions. Do not force unlike shapes into one shortcut.
Verify the supply rule
Ready-mix uses cubic yards/meters, premix uses product yield, and block walls use whole units plus project-specific special pieces.