How To Calculate Sand Needed For Patio. Also how much sand and gravel do I need for patio. Enter the height and width dimensions in to our easy calculator.
Calculate the volume of sand by multiplying the surface area by the depth of the sand layer. Measure in metres and part metres. For example to fill a box with a width of 3ft and a length of 6ft to a depth of 1ft you need to multiply 1ft x 3ft x 6ft 18ft 3 cubic feet of sand.
Add your square patio dimensions or round diameter to the appropriately labeled area using decimal point values in inches.
Make your calculations using a sand depth of 2 inches or 01667 feet. To calculate your paver joints refer to the image on the left. Add your square patio dimensions or round diameter to the appropriately labeled area using decimal point values in inches. For 15 cubic yards of gravel get about one-half cubic yards of sand.
