How much soil for a 6x6 raised bed? Bags and cubic yards

Soil for a 6 × 6 ft bed at each depth

Whole bags are rounded up. The bed’s wall height is not the soil depth: measure the depth you plan to fill.

Bags of

Soil depth	Cubic feet	Cubic yards	Bags of ¾ ft³	Bags of 1 ft³	Bags of 1.5 ft³	Bags of 2 ft³	Bags of 3 ft³
6 in	18	0.67	24	18	12	9	6
8 in	24	0.89	32	24	16	12	8
10 in	30	1.11	40	30	20	15	10
12 in	36	1.33	48	36	24	18	12
18 in	54	2	72	54	36	27	18
24 in	72	2.67	96	72	48	36	24

Measure inside the walls

The table uses the full 6 × 6 ft. If that is the outside size of a wooden bed built from boards 1½ inches thick, the growing space inside is 69 × 69 inches. At 12 inches deep that holds 33.06 cubic feet, 8% less than the table. Metal and composite walls are thinner, but corner posts and braces still take space, so measure between the inner walls before you order.

Beds sold at 6 × 6 ft

These beds in our catalogue are sold at this size. A maker’s stated capacity often differs from the table because the inside is smaller than the advertised size or the maker assumes a different fill depth.

Work out your own bed

Open these measurements in the soil calculator to change the depth, add more beds or split the fill into a mix. To compare the cost of bags with a bulk delivery for 1.33 cubic yards, use the bagged vs bulk soil calculator.

Other bed sizes

2 ft wide

2 × 6 ft12 ft³ at 12 in

3 ft wide

3 × 6 ft18 ft³ at 12 in

4 ft wide

4 × 6 ft24 ft³ at 12 in