Shed Gravel Pad Calculator

How to calculate

Enter the pad dimensions including the extension specified by your shed installer. Use a loose-order depth or convert the compacted volume with your supplier.

Worked example

Length (ft): 14 · Width (ft): 12 · Material depth (in): 4 · Bag yield (cu ft): 0.5 · Extra material (%): 10.

These inputs produce 2.28 cubic yards to order. Change the measurements above to match your project.

Before you order

Confirm the foundation requirements for the shed, drainage and site slope. The calculator is a quantity estimate, not a foundation design.

For an irregular footprint, split the project into rectangles. Calculate each section and combine unrounded quantities before rounding the final order. Ask the supplier to confirm product yield and available package sizes.

Common questions