Coverage Calculator

How much mulch do i need?

Use this chart to determine how much rubber mulch you need for your project.

Example: Let’s say you have a 1,000 square foot area (see how to calculate square footage below) and you want a mulch depth of 6”.

  • For uncompacted coverage: You would take 1,000 divided by 150 from the 6” uncompacted column which would give you 6.67. We round up in most cases to make sure there is enough mulch. Here you’ll need a total of 7 – 75 cubic foot rubber mulch pallets
  • For compacted coverage: This is the same process as above but instead use the number from the compacted column. 1,000 / 127 = 7.87. With the result rounded you’ll need a total of 8 – 75 cubic foot rubber mulch pallets

Do you need a Certified Critical Fall Height? Rubber mulch manufactures sometimes change the way their rubber mulch is lab tested for certification and the depths that are certified. Please DO NOT use the calculator below if you need a certified fall height for your project. Instead, contact us and we’ll help you determine the correct volume needed.

Mulch Depth * Uncompacted Coverage (Square Feet per 75 cubic foot pallet) ** Compacted Coverage (Square Feet per 75 cubic foot pallet)
6" 150 127
5" 180 153
4" 225 180
3" 300
2" 450
1" 900

* What is “Uncompacted Coverage”: This is the depth of the mulch after it is installed.

** What is “Compacted Coverage”: Over time rubber mulch can settle. This is the estimated depth of the mulch after it has settled or compacted.

How do I calculate the square footage of my area?

A square foot is a unit of area measurement equal to a square measuring one foot on each side.

Simple Rectangular Areas: A rectangle is the easiest shape to determine the total square footage of. You simply take the length multiplied by the width to determine the total square feet. If your play or landscape area is a rectangle then you’re all set. Just use this formula to determine the total square footage of your area:

L (length in feet) x W (width in feet) = sqft (total square feet).

Complex Areas: If your play or landscape area is a more complex shape, the easiest thing to do is divide the area into smaller rectangles, calculate the area of those rectangles using the formula above, then add all the rectangles together for the total square footage of the area. This won’t be an exact measurement but it will get you pretty close. See the diagram below to illustrate this method.

I need help! If you have any questions about how to determine how much rubber mulch you need give us a call. We would love to help you out.

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