How to Calculate Pavers
Pavers: Paver area (sq ft) = (width × length) ÷ 144. Pavers = area ÷ paver area × 1.05 (5% waste for cuts).
Base gravel: Cubic yards = area × (base depth ÷ 12) ÷ 27. Compacted base reduces volume ~15%.
Sand bedding: Cubic yards = area × (sand depth ÷ 12) ÷ 27. Use coarse sand, not play sand.
Layer Structure (bottom to top)
- Compacted subgrade (existing soil)
- 4-6 inches compacted gravel base
- 1 inch sand bedding
- Pavers
- Polymeric sand in joints
FAQ
How many pavers for 12×12 patio?
With 16×16 pavers: 144 sq ft ÷ 1.78 sq ft/paver × 1.05 = ~85 pavers.
How much sand under pavers?
1 inch bedding sand. 100 sq ft = ~0.31 cu yd = ~0.4 tons.
How much base gravel?
4-6 inches compacted. 100 sq ft at 4" = ~1.23 cu yd = ~1.7 tons.
Pavers directly on dirt?
No. Need 4-6" gravel base + 1" sand to prevent sinking and weeds.