How much soil for a 4x8 raised bed?
A standard 4x8 ft raised bed at 12 inches deep (1 foot) needs about 3.2 cubic feet - roughly 2 bags of 2 cu ft or one bag of 3 cu ft. Calculator pre-filled below.
Material Totals
Volume (bulk) 1.19 cu yd
2 cu ft bags 16 bags
3 cu ft bags 11 bags
1 cu yd = 27 cu ft. Bulk delivery is more economical above ~3 cu yd.
Printable Shopping List
Area / Depth32 sq ft / 12 in
Bulk order1.19 cu yd
2 cu ft bags16 bags
3 cu ft bags11 bags
Generated by BuildTotals.com | buildtotals.com/tools/mulch-calculator
For raised beds, use a mix of 60% topsoil, 30% compost, and 10% coarse sand or perlite for drainage. Avoid filling with straight garden soil which can compact and drainage poorly.