Concrete footings & columns

MEASURE FIRST

How to prepare your inputs

Break the pour into non-overlapping shapes. Measure from approved plans, keeping millimetre thickness separate from metre dimensions.

How this calculation works

Rectangular volume = length × width × depth. Circular volume = π × (diameter ÷ 2)² × depth. Multiply by section count and allowance.

Assumptions & exclusions

Only inputs for the selected shape affect the volume. Depths and sizes must come from the project design. Does not specify footings, foundations, reinforcing or load capacity.

Your next step

Confirm the final pour schedule, access, delivery, reinforcement and placement with your concreter.

Further reading

• Boral concrete calculator
• Cement Australia calculators

These resources provide background information. Confirm current product specifications and project requirements with your supplier or trade professional.

What if my shape or product is different?

Use dimensions and product data that match the stated method. For complex work, calculate separate sections or obtain a project-specific take-off. Do not apply simple geometry to structural or compliance decisions.

Why are quantities rounded up?

Whole bags, packs, sheets or cartridges round up to purchasable units. Decimal area or volume results are planning figures; confirm order increments with the supplier.

Are my entries saved?

No. Entries remain in the current browser page and clear on reload. Printing can save your results and inputs as a PDF on your device.