Soil for a 4 × 4 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 | 8 | 0.3 | 11 | 8 | 6 | 4 | 3 |
| 8 in | 10.67 | 0.4 | 15 | 11 | 8 | 6 | 4 |
| 10 in | 13.33 | 0.49 | 18 | 14 | 9 | 7 | 5 |
| 12 in | 16 | 0.59 | 22 | 16 | 11 | 8 | 6 |
| 18 in | 24 | 0.89 | 32 | 24 | 16 | 12 | 8 |
| 24 in | 32 | 1.19 | 43 | 32 | 22 | 16 | 11 |
Measure inside the walls
The table uses the full 4 × 4 ft. If that is the outside size of a wooden bed built from boards 1½ inches thick, the growing space inside is 45 × 45 inches. At 12 inches deep that holds 14.06 cubic feet, 12% 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 × 4 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 230 dry quarts (8.94 cubic feet).
- Gardener’s Supply Deep Root Cedar Raised Beds14.5 in walls, 14.5 in planting depth. The maker states 514 dry quarts (19.99 cubic feet).
- Gardener’s Supply Farmstead Cedar Raised Beds8 in walls, 8 in planting depth. Inside: 39 × 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 342 dry quarts (13.3 cubic feet).
- Birdies Large Modular Raised Bed15 in walls. The maker states 20 cubic feet.
- Birdies Large Modular Raised Bed29 in walls. The maker states 38.4 cubic feet.
- Gronomics Cedar Raised Garden Beds10.5 in planting depth. The maker states 14 cubic feet.
- Gronomics Cedar Raised Garden Beds17.5 in planting depth. The maker states 23.33 cubic feet.
- Frame It All GardenBLOX 4 × 4 ft Raised Bed5.5 in walls. The maker states 7.33 cubic feet.
- Frame It All GardenBLOX 4 × 4 ft Raised Bed11 in walls. The maker states 14.66 cubic feet.
- Frame It All GardenBLOX 4 × 4 ft Raised Bed16.5 in walls. The maker states 21.99 cubic feet.
- Frame It All GardenBLOX 4 × 4 ft Raised Bed22 in walls. The maker states 29.32 cubic feet.
- Epic Medium Modular Metal Raised Bed15 in walls. The maker states 20 cubic feet.
- Epic Medium Modular Metal Raised Bed29 in walls. The maker states 38.7 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 0.59 cubic yards, use the bagged vs bulk soil calculator.