Landscape Supplies Calculator

Bulk Materials (Soils, Mulch and Aggregates)

To calculate approximate # of yards needed:

length (in feet) x width (in feet) x depth (in inches) divided by 12 divided by 27

Compacted Aggregates

ONE (1) Yard of COMPACTED Aggregate will cover approximately:

• 1" thick = 200 sq. ft.
• 2" thick = 100 sq. ft.
• 3" thick = 75 sq. ft.
• 4" thick = 50 sq. ft.
• 5" thick = 38 sq. ft.
• 6" thick = 25 sq. ft.
• 12" thick = 15 sq. ft.

Natural Stone

To calculate the approximate # of tonnes needed:

length (in feet) x width (in feet) x height (in inches) divided by 12 x 170 divided by 2000

Random Flagstone Coverage per Tonne

• 1/2" thick flagstone covers an area approximately 225 sq.ft.
• 3/4" thick flagstone covers an area approximately 125 sq.ft.
• 1"-1 1/4" thick flagstone covers an area approximately 100 sq.ft.
• 1 1/2"-1 3/4" thick flagstone covers an area approximately 70 sq.ft.
• 2" thick flagstone covers an area approximately 50 sq.ft.

Formulas For Area Calculations

Area = length x width
Area of Circle = 3.14 x radius x radius
Area of Triangle = length x width / 2

How much does rock weigh?

Each cubic foot of rock weighs approximately:

Limestone: 165 lbs/cu.ft.
Granite: 175 lbs/cu.ft.
Sandstone: 150 lbs/cu.ft.