HELPFUL INFORMATION

Cubic Yard Mulch/Topsoil Covers:

Sq Ft:

324
162
108
81
65

Depth:

1"
2"
3"
4"
5"

One Cubic Yard

Here is a cube to illustrate what a cubic yard looks like.  Notice the typical full-sized SUV next to it for perspective.
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Linear Measure:

12 inches  = 1 foot
3 feet  = 1 yard

Cubic Measure:

Area:

27 cu ft
1 cu ft
1728 cu inches

Equals:

1 cu yd
7.5 gal
1 cu ft

Square Measure:

Area:

144 sq in
9 sq ft
43560 sq ft
4840 sq yd

Equals:

1 sq ft
1 sq yd
1 acre
1 acre

Boulders:

Size:

4"-8"
8"-12"
12-"-18"
18"-24"
24"-36"

Coverage:

35-40 SF
23-30 SF
12-15 SF
8-10 SF
4-6 SF

Granite Boulders:

Size:

24"
36"
48"
5'

Weight:

Approx. 500 lbs
Approx. 2000 lbs
Approx. 2 to 3 tons
Approx 4 to 5 tons

Granite Cobblestone:

Size:

1 cu yard

Weight: 

Approx. 2700 lbs

Black Granite Cobblestone:

Size:

1 cu yard

Weight: 

Approx. 2800 lbs

Veneer:

Flat of:

Thin
Corners

Weight:

Approx. 14 lbs/ sqft.
Corners weigh approx. 16 lbs/lnft

Area:

Diameter = distance across circle, radius = from center out (half the diameter)
 

Circle
Circle
Circle
Circle
Cylinder Volume
Rectangle
Square
Trapezoid
Triangle

NOTE: All units must be the same for these formulas to work. In other words, all in feet or all in inches.

Area = diameter x diameter x .7854
Area = pi x radius x radius
Circumference = diameter of circle divided by .31831
Diameter = circumference x .31831
Pi x radius x radius x height
Area = Width (X) x Height (Y)
Area = X x X
Area = (a+b) x h/2
Area = 1/2 (b x h)