Landscapers
Mulch Calculator
Calculate cubic yards and bags of mulch needed for any landscaping bed or area.
20 x 10 ft at 3" deep = 1.85 cubic yards. Order mulch by the cubic yard from a landscape supplier for the best price on larger jobs. One cubic yard covers about 108 square feet at 3 inches deep.
Common Questions
How much mulch do I need?
Measure the length and width of the area in feet and decide on a depth of 2 to 4 inches. This calculator converts your measurements to cubic yards so you know exactly what to order.
How deep should mulch be?
Apply 2 to 3 inches for weed control around plants and trees. Use 3 to 4 inches for pathways and play areas. Going over 4 inches can smother plant roots and cause moisture problems.
How many bags of mulch are in a cubic yard?
About 13.5 bags of 2 cubic foot mulch make one cubic yard. For large areas, ordering by the yard from a landscape supplier is cheaper than buying bags from a store.
How often should mulch be replaced?
Most mulch needs refreshing once a year. Hardwood mulch lasts longer than pine bark or dyed mulch. Top off beds when the layer gets below 2 inches.
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