How deep should mulch be?
A depth of 2 to 3 inches is standard for suppressing weeds and retaining moisture. More than 4 inches can suffocate plants.
Calculator
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Analysis
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How to Use
Step-by-step instructions
- 1Enter the length and width of the garden bed (in feet).
- 2Enter the desired depth of mulch (in inches).
- 3The calculator will estimate the cubic yards and bags needed.
Volume Calculation
Calculates the volume of mulch needed in cubic yards and number of standard 2 cu ft bags.
Volume = Length x Width x DepthVariables:
LLength (ft)WWidth (ft)DDepth (in)Example
Flower Bed
Inputs:
Length:10 ft
Width:5 ft
Depth:3 inches
Steps:
- 1.Volume = 10 * 5 * 0.25 = 12.5 cu ft
- 2.Cubic Yards = 12.5 / 27 = 0.46 cu yds
- 3.Bags = 12.5 / 2 = 6.25 -> 7 bags
Result:
7 Bags (0.46 cu yds)