Gardeners Calculator

Mulching Calculations:

1 Cubic
Yard Mulch – 27 Cubic Ft.

 Covers 108 sq.ft. @ 3″ depth   (New
Application) Covers 216 sq.ft. @ 1.5″ depth  (Annual Top Dress)

1 – 3
Cubic Ft. Bag Mulch – 3 cubic ft. (9 bags = 1 Cubic
Yard)

Covers 12 sq.ft. @ 3″ depth  (New Application)

Covers 24 sq.ft. @ 1.5″ depth (Annal Top Dress)

1
Bales of Pine Straw    Covers 40 sq.ft. @ 3-4″ depth  (New Application) Covers 60-80 sq.ft. @ 2″ depth (Top Dress)

1 Ton of Pea Gravel (Assorted Types)

Covers appx. 100 sq.ft. per Ton at 2″ depth

Calculating Bed or Lawn Size:

Area
Square Feet = Length of Area (x) Width of Area

Example:  A 5 foot wide bed that’s 20 feet long

Length (5′) x Width (20′) = 100 square feet

Example: A 100 foot wide lawn that’s 50 feet long

Length (100′) x Width (50′) = 5,000 square feet

Calculating Soil or Material Coverage or Requirements:

Area Cubic

Footage = Length of Area (x) Width of Area (x) Height of
Area

Example:
How much soil do I need to raise or elevate a  10′
x 10′ square foot area by 3″
Length (10′) x Width (10′) x Height (.25′) = 25 cubic
ft.
Answer is just a little under 1 cubic yard of soil which
is 27 cubic ft. or 25 (1 cubic ft.) bags of bagged topsoil

Example:
I want to top dress an 20′ x 100′ area (2,000 square
ft.) area with 1″ of soil.

How much soil do I need?
Width (20′) x Length (100′) x (.083′) = 166 cubic ft. of
soil * Note – .083′ was derived from dividing inches 1″ x 12″
(1 ft.) = .083′

Answer: 166 cubic ft. of soil or (166 cubic ft. ÷
27 cub.ft.) =
6.15 cubic yards soil

Measurement References & Guides: