Coverage & Calculations

Here we have listed some common coverages of our products and calculations to help recommend the quantities you will need in your yard or landscape.

Mulch Coverage

To calculate Mulch Coverage, take the Length and multiply by the Width. Then multiply that number by the Depth of your mulch. The average mulch depth is 2”-3”. Now that you have your volume, divide that number by 24. 24 is the average square feet a 2cuFt bag will cover.

For Example: 15’ x 5’ = 75sqFt, 75sqFt x 3” depth = 225cuFt, 225cuFt / 24 = 9.375.

You would need (10) 2cuFt bags of mulch to cover this area.

Top Soil/Raised Bed Fill & Coverage

First find the Volume of the area you are trying to level off or fill in. Length x Width, then multiply by your Depth. Now divide by 12, 12 is the square feet a 1 cuFt bag will cover at a 1” depth. Most soils come in 1-2cuFt bags, but topsoils sometimes come in 40-45lb bags. A 40lb bag will cover .75cuFT and a 45lb bag will cover .85cuFt.

For Example: 15’ x 5’ = 75sqFt, 75sqFt x 3” depth = 225cuFt, 225cuFt / 12 = 18.75.

You would need (19) 1cuFt bags of soil to fill in this area.

Grass Seed Coverage

The fall is the best time of year to sow your cool season grass seed or blend out in the yard. For a new yard or primarily bare soil, seed at a rate of 10lbs per 1000 sqFt. For existing lawns that need to be over seeded apply seed at a rate of 5lbs per 1000sqFt. For warm season grasses such as Bermuda, Centipede and Zoysia your coverages are very different. 1 pound of Centipede seed will cover 3,000 sqFt but needs to be mixed with 3 gallons of dry sand for proper spreading. Bermuda is spread at a rate of 1 pound per 1,000 sqFt and is also mixed with 3 pounds of dry sand. Zoysia is the hardest to establish from seed out of the warm season grasses. 2 pounds of Zoysia will cover 1,000 sqFt but due to poor germination of Zoysia grass it is recommended to spread at a rate of 4 pounds per 1,000 sqFt.

Cool Season Grasses: New Lawn 10lbs per 1,000 sqFt & Existing Lawn 5lbs per sqFt

Centipede Grass: 1lb per 3,000 sqFt

Bermuda Grass: 1lb per 1,000 sqFt

Zoysia Grass: 2-4lbs per per 1,000 sqFt

Wheat Straw Coverage

When planting grass seed in the fall you should always cover your seeds with a light covering of wheat

straw to hold moisture. It also provides a bit of shade so the new seedlings won’t burn up in the sun.

You should spread wheat straw about a 1/4” thick or less, much more will hold too much moisture and

rot the seeds. An average bale will cover between 585-625 sqFt at a thickness of a 1/4".

1 Bale: 585-625 sqFt at a 1/4" thickness

Pine Straw Coverage

In the South we use a lot of Pine Straw for landscaping purposes. Most landscaping uses a 2”-3” thick layer of pine straw around trees, shrubs and in beds. At 2” thick an average bale of long needle pine will cover 75-80 sqFt and at 3” the same bale will cover 45-50 sqFt.

1 Bale: 75-80 sqFt at a 2” thickness; 45-50 sqFt at a 3” thickness

Pond Volume

Ponds are much trickier to calculate since they come in so many different shapes. We will break these down into 3 categories; rectangular ponds, oval ponds & larger ponds or lakes. For a rectangular shaped pond take the length x width, then multiply by the average depth. Now multiply that number by 7.43, which is the gallons in a cuFt. An oval shaped pond requires a similar equation but multiplies the full total by 0.8 to allow for the curve of the pond. For larger ponds and lakes, the rate of measure changes to an acre-foot. Calculate the area in acres, multiply by the average depth in feet then multiply by 326,000. 326,000 is the average gallons per acre and an acre is 43,560 sqFt.

Rectangular Shape

For Example: A rectangular shape pond 15 feet L x 5 feet W x 10 feet D

15’ x 5’ = 75sqFt, 75’ x 10’ = 750sqFt, 750’ x 7.43 = 5,572.5 gallons

Oval Shape

For Example: An oval shape pond 15 feet L x 5 feet W x 10 feet D

15’ x 5’ = 75sqFt, 75’ x 10’ = 750sqFt, 750’ x 7.43 = 5,572.5cuFt, 5,572.5 x 0.8 = 4,458 gallons

Larger Pond or Lakes

For Example: A pond 2 acres L x 1.5 acres W x 24 feet D:

2 acres x 1.5 acres = 3 acres, 3 acres x 24’ = 72, 72 x 326,000 = 23,472,000 gallons