2 × 4 ft bed: the short answer
Filled 10 inches deep, a 2 × 4 ft raised bed needs about 6.7 cubic feet of soil — that's roughly 5 bags of 1.5 cu ft (or 4 of the 2 cu ft size), and about 0.25 cubic yards if you order in bulk.
Bed size
A 2 × 4 ft bed filled 10 inches deep takes about 6.7 cubic feet of soil — about 5 bags of 1.5 cu ft, or 0.25 cubic yards in bulk. Change the depth, bag size, or mix below for your exact build.
Soil needed
—Enter bed size and depth to estimate soil.
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Soil mix breakdown
| Component | Cu ft | Bags |
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Filled 10 inches deep, a 2 × 4 ft raised bed needs about 6.7 cubic feet of soil — that's roughly 5 bags of 1.5 cu ft (or 4 of the 2 cu ft size), and about 0.25 cubic yards if you order in bulk.
Soil and compost settle after the first few waterings, so buying one extra bag is sensible. If you need close to a cubic yard, compare bulk delivery — it's usually cheaper per cubic foot than bags. Adjust depth and bag size in the calculator for your exact build.
Standard volume math at 10″ depth; 1 cu yd = 27 cu ft. Estimates only.
At 10 inches deep, a 2 × 4 ft bed holds about 6.7 cubic feet of soil (0.25 cubic yards). In bags that's about 5 × 1.5 cu ft, or 4 × 2 cu ft. Deeper or shallower fills scale directly with depth — use the calculator above to match yours.
About 5 bags if you buy 1.5 cu ft bags, or 4 bags of the larger 2 cu ft size. Always round up — and add one extra bag, since compost settles after watering.
Mel's Mix is equal thirds compost, peat moss or coir, and coarse vermiculite. For 6.7 cu ft that's about 2.2 cu ft of each — roughly 2 bags of 1.5 cu ft per component.
Estimate only, based on standard volume math at 10″ depth. Real fill varies with settling and supplier bag sizes; bag counts are rounded up. Confirm against your supplier before ordering.