Calculating Material Quantities

To determine how much material is needed for your landscaping project, start by calculating the square footage of the area.

Step 1: Measure the Area

• Measure the length and width of the space.

• Multiply them together to get the total square footage.

Example:

Length × Width = Square Footage  
15 ft × 25 ft = 375 sq. ft.

Step 2: Determine Material Needed
Divide the total square footage by the coverage rate of the material.

Example:

375 sq. ft ÷ 100 sq. ft (per ton at 2" depth) = 3.75 tons of rock

Coverage Rates

Decorative Rock

• 1 ton covers approximately:

  • 100 sq. ft. at 2" depth

  • 80 sq. ft. at 3" depth

  • 60 sq. ft. at 4" depth

  • 40 sq. ft. at 6" depth

Rip Rap

• 1"–4" rock: ~80 sq. ft. per ton

• 3"–8" rock: ~65–75 sq. ft. per ton
  
  
  1 Ton = 2,000 LBS
  1 Ton = 5-1/2 Level Wheelbarrows
  1 Yard = 7 Level Wheelbarrows
  1 Cubic Yard = 6-7 Level Wheelbarrows
  20 Shovels = 3 Cubic Foot Wheelbarrow