Planning: Pond Calculations

February 8, 2015

Here’s the rule of thumb for measurement of your pond.

SQUARE FEET on the surface area.

  • Rectangle

length x width = Square feet of pond

  • Circular

3.14 (1/2 diameter x 1/2 diameter) = square feet of surface

NUMBER OF CUBIC FEET

  • Rectangle

average length x average width x average depth = volume in cubic feet

  • Circular

3.14 (1/2 diameter x 1/2 diameter x depth = volume in cubic feet

To calculate GALLONS in your pond

cubic feet x 7.48 = capacity in gallons

FORMULAS TO DETERMINE APPROXIMATE AMOUNT OF ROCK NEEDED:

  • Quantity of BOULDERS in a pond (tons) = length (ft) x width (ft) divided by 65
  • Quantity of BOULDERS using 1.2.1 ratio. Length x Width divided by 40
  • Quantity of 1/4 inch to 3 inch GRAVEL (tons) = tons of boulders x .45
  • Quantity of BOULDERS in a STREAM = 3/4 TON PER 10 FEET OF STREAM LENGTH

Around the FACE of A SIGNATURE 6000 BIOFALLS you will need approximate 3/4 TO 1 1/4 tons of boulders.

Note: If you are building a large water feature you will need to increase the tonage of rock as the stone you will use will be larger and carry more weight.

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Article by Meyer Aquascapes

Meyer Aquascapes is a premier water feature design and installation company specializing in custom ponds, waterfalls, fountains, and aquatic landscapes. With decades of experience and a passion for transforming outdoor spaces, they create serene, nature-inspired environments tailored to each client’s vision. Known for exceptional craftsmanship and personalized service, Meyer Aquascapes also provides maintenance solutions, seasonal cleanouts, and expert advice to keep water features thriving year-round. Whether it’s a backyard retreat or a large-scale commercial project, they bring creativity, expertise, and lasting beauty to every installation.

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