1 * 3 * 3 CUBIC feet (not sq ft) = 9 cubic ft = 254.852 litres (to 3 dp).
1359L
None! It's A freakin' hole!
360 litres
5 ft x 3 ft x 3 ft = 45 ft3 1 ft3 ~= 7.481 gallons 45 ft3 * 7.481 gallons/ft3 ~= 336.6 gallons
18ft3
A "board foot" is 1 inch thick, 12 inches wide, 12 inches long. A 12 ft 2x4 would be 8 board ft- 1/3 the width, but 2X the thickness.
1 * 3 * 3 CUBIC feet (not sq ft) = 9 cubic ft = 254.852 litres (to 3 dp).
1359L
None! It's A freakin' hole!
360 litres
18 cu. ft
5 ft x 3 ft x 3 ft = 45 ft3 1 ft3 ~= 7.481 gallons 45 ft3 * 7.481 gallons/ft3 ~= 336.6 gallons
20 ft * 10 ft * 4 ft = 800 ft^3 1 ft^3 = 7.48052 gal 800 ft^3 * 7.48052 gal/ft^3 = 5,984.4 gal
The pond liner would be the surface area of a cube minus the top rectangle. 13x8 + 3x8 (2) + 3x13 (2) = 230 ft^2
561.0390 gallons 5x5x3=75 75x7.48051948(gallons in a cubic foot)=561.0390
none