Soil for a 4 × 8 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.
| 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 | 16 | 0.59 | 22 | 16 | 11 | 8 | 6 |
| 8 in | 21.33 | 0.79 | 29 | 22 | 15 | 11 | 8 |
| 10 in | 26.67 | 0.99 | 36 | 27 | 18 | 14 | 9 |
| 12 in | 32 | 1.19 | 43 | 32 | 22 | 16 | 11 |
| 18 in | 48 | 1.78 | 64 | 48 | 32 | 24 | 16 |
| 24 in | 64 | 2.37 | 86 | 64 | 43 | 32 | 22 |
Measure inside the walls
The table uses the full 4 × 8 ft. If that is the outside size of a wooden bed built from boards 1½ inches thick, the growing space inside is 45 × 93 inches. At 12 inches deep that holds 29.06 cubic feet, 9% 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 4 × 8 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.
- Gardener’s Supply Cedar Raised Beds, 4 ft Wide7.25 in walls, 7.25 in planting depth. The maker states 460 dry quarts (17.89 cubic feet).
- Gardener’s Supply Deep Root Cedar Raised Beds14.5 in walls, 14.5 in planting depth. The maker states 1,028 dry quarts (39.98 cubic feet).
- Gardener’s Supply Farmstead Cedar Raised Beds8 in walls, 8 in planting depth. Inside: 87 × 39 in. The maker does not state a soil capacity.
- Gardener’s Supply Elevated Cedar Raised Beds29 in walls, 10 in planting depth. The maker states 685 dry quarts (26.64 cubic feet).
- Greenes Fence Cedar Raised Bed 4 × 8 ft10.5 in walls. The maker states 28 cubic feet.
- Greenes Fence Cedar Raised Bed 4 × 8 ft14 in walls. The maker states 37.3 cubic feet.
- Vego 32" Extra Tall 10-in-1 Jumbo Modular Bed32 in walls. The maker states 85 cubic feet.
- Vego 26" Tall Woodgrain Metal Raised Bed26 in walls. The maker states 65.2 cubic feet.
- Birdies Jumbo Modular Raised Bed15 in walls. The maker states 38.4 cubic feet.
- Birdies Jumbo Modular Raised Bed29 in walls. The maker states 78.8 cubic feet.
- Epic Large Modular Metal Raised Bed15 in walls. The maker states 40 cubic feet.
- Epic Large Modular Metal Raised Bed29 in walls. The maker states 77.3 cubic feet.
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 1.19 cubic yards, use the bagged vs bulk soil calculator.