Bark mulch and bagged mulch
Mulch Calculator USA 2026
Volume = bed area (ft²) × depth (in ÷ 12) ÷ 27 for cubic yards, then bags = cubic feet ÷ 2 for standard 2 ft³ bags.
Reviewed by BuildMate Editorial Team Construction Researchers Updated March 2026 2 min read Fact-checked
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Cubic yards2.78 yd³
2 cu ft bags38
Coverage300 sq ft at 3" deep
Show calculation steps
- Volume = 300 × (3/12) = 75.00 ft³
- Cubic yards = 75.00 ÷ 27 = 2.78
- Bags (2 cu ft) = ⌈75.0 ÷ 2⌉ = 38
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How the bark mulch and bagged mulch math works
Volume = bed area (ft²) × depth (in ÷ 12) ÷ 27 for cubic yards, then bags = cubic feet ÷ 2 for standard 2 ft³ bags.
Yards = (Area × Depth/12) ÷ 27
Frequently asked questions
How deep should mulch be?
2–3" for beds; never mound against trunks (that causes rot).
Bag or bulk?
Bulk is 40% cheaper above 3 yd³. Bags win for small jobs and cleaner delivery.
Estimates based on 2026 RSMeans USA data and national material averages. Always confirm quantities with your supplier or contractor before ordering.