Shed Foundation Calculator
Estimate preliminary shed foundation blocks, skid length, gravel volume, gravel weight and material cost for a rectangular shed base.
Default project preview
12 blocks
Gravel volume
1.63 yd³
Gravel weight
2.28 short tons
Total skid length
36 ft
Foundation footprint
120 ft²
Calculator
Build the material order
Your order will appear here
Enter the project details and calculate a rounded material estimate.
Methodology
Transparent calculation
BuildMeter converts every input to a consistent internal unit, applies the selected allowance, and rounds products up to whole purchasable units.
Blocks per skid = round up (shed length ÷ maximum spacing) + 1. Gravel volume = footprint × depth × allowance, then converted to entered density.
FAQ
Shed Foundation Calculator questions
Can blocks be placed directly on soil?+
A compacted, drained base is commonly used, but the approved foundation method depends on site and local requirements.
Does this size the skids?+
No. Skid size and span require structural selection.
Is anchoring included?+
No. Wind anchorage and tie-down details are separate from this quantity estimate.