Mulch for 20 m²
At 8 cm deep, with a 5 percent allowance.
Cubic metres
1.68m³
50 L bags
34
cubic metres = 20 × (8 / 100) × 1.05 = 1.68 m³
That is about 215 sq ft, roughly 2.09 cubic yards at 3 inches deep.
Open the interactive Mulch CalculatorAbout this estimate
20 square metres at 8 cm deep is about 1.6 cubic metres before the allowance. Bulk delivery is far cheaper than bags for larger beds.
Spreading mulch? A wide landscape rake levels a bed quickly.
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Common questions
How much mulch for 20 square metres?
At 8 cm deep, 20 square metres needs about 1.68 cubic metres of mulch, roughly 34 of the 50 litre bags.
How deep should mulch be?
Five to eight centimetres is typical. Deeper than that can trap too much moisture against stems.
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