Pavers for a 16x20 patio
12 by 12 inch pavers, 5 percent waste added.
Pavers (12x12)
336
Base gravel
3.95cu yd
Bedding sand
0.99cu yd
pavers = 16 × 20 ÷ 1 × 1.05 = 336
That is about 29.7 m² of patio.
Open the interactive Paver CalculatorAbout this estimate
A 16 by 20 foot patio is 320 square feet. With one square foot pavers that is 320 before waste. Add about 4 inches of gravel base and 1 inch of bedding sand under them.
Laying a patio? A string line and line level keep courses straight and the surface true.
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Common questions
How many pavers for a 16 by 20 patio?
A 16 by 20 foot patio is 320 square feet. With 12 by 12 inch pavers and 5 percent waste, that is about 336 pavers.
How much base and sand under the pavers?
About 4 inches of compacted gravel base and 1 inch of bedding sand. The calculator gives both volumes.
More Calculators
Concrete New
Enter slab dimensions. Result rounds up with a 7 percent waste allowance.
Gravel New
Enter the area dimensions and depth. Result rounds up with a 5 percent waste allowance.
Mulch New
Enter the bed area and depth. Result rounds up with a 5 percent allowance.
Topsoil New
Enter the area and depth. Result rounds up with a 5 percent allowance.
Paint New
Enter total wall area and coats. Result rounds up to whole units.
Flooring New
Enter room area and the coverage printed on the box. 10 percent waste added.
Tile New
Enter the area and one tile size. 10 percent waste added.
Drywall New
Enter total area to cover. 10 percent waste added.
Paver New
Enter the patio size and one paver size. 5 percent waste added.
Sand New
Enter the area and depth. 5 percent allowance added.
Roofing New
Enter the roof surface area. 10 percent waste added. Three bundles per square.
Insulation New
Enter area to cover and the coverage printed on the package. 5 percent added.
Fence New
Enter total fence length and post spacing.
Sod New
Enter the area to cover. 5 percent allowance added.
Grass Seed New
Enter area and seeding rate. Default rates suit a new lawn.
Fertilizer New
Enter area, target nitrogen rate and the first number on the bag.
Cubic Yards New
Enter length, width and depth. No waste added.
Square Footage New
Enter length and width.
Board Foot New
Enter board dimensions and quantity.
Material Cost New
Enter quantity, unit price, tax and delivery. Figures are in your own currency.