To figure yards: (l x w x d/ 27 = #yds)

Length in feet x Width in feet = Square feet x Depth (see factors below for depth in inches) = Cubic Feet and then divide by 27 to = yard(s)

Depth Factors - Inches to decimals:

Take the inches and divide by 12 and use that number in the equation above.

1" = .08	3" = .25	5" = .42	7" = .58	9" = .75
2" = .17	4" = .33	6" = .50	8" = .67	10" = .83

Table below: 1 yard at # inches deep = Area of coverage

1" deep = 18' x 18' area	4" deep = 9'9' area
2' deep = 13' x 13' area	5" deep = 8'x8' area
3' deep = 10.5' x 10/5'	6" deep = 7.5' x 7.5' area

Tons per Yard

Number of yards (as you figured above) x conversion rate (see table below) = tons

The conversion rate varies - these are the average numbers that we use.

Pea Stone to 1 1/4" stone = 1.27	Process = 1.50
Washed sand = 1.25	Sandy Fill = 1.20
Mason Sand = 1.20	Common Fill = 1.35

To figure a round area for under above ground pool:

# feet round divided by (/) 2 = # x itself = # x pie (3.1416) = sq ft x depth divided by (/) 27 = yds
Then you take conversion of sand (1.25) to figure tons of sand

This table below is figured with a 3" depth

24' round = 5.24 tons	27' round = 6.63 tons
25' round = 5.68 tons	28' round = 7.13 tons
26' round = 6.15 tons	30' round = 8.19 tons

To figure the area for stone placement around the perimeter of the pool:
Take diameter of the pool x pie (3.1416) = circumference x width = sq ft x depth divided by 27 = yds.
Then if you need to figure tons use the conversion rate from above.

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