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Patio Sand Calculator

Complete material breakdown for DIY and contractor patio installations: leveling bedding sand plus locking joint sand.

Patio Material Quantities

Real-Time
Bedding Sand Volume
0.00 yd³
0 tons
Joint Sand (50 lb)
0 Bags
Polymeric sand
Bedding Bags (50 lb)
0 Bags
If buying pre-bagged
Patio Surface Area
0 sq ft
Total area
Visual Engineering

Backyard Patio Slabs & Bedding Base

Multi-tier patio layout showing screeded sand level over compacted crushed aggregate.

1" (25mm) PATIO LEVELING SAND 4" Compacted Hardcore / Sub-Base PATIO SAND MATH • Bedding: (Sq.Ft × 1") / 324 yd³ • Joint Sand: 1 bag per 100 sq ft • Slope / Fall: 1:60 to 1:80 for drain • Total Sand = Bedding + Joint + 10%

Backyard Patio Slabs & Bedding Base

Multi-tier patio layout showing screeded sand level over compacted crushed aggregate.

Mathematical Theory

Engineering Calculations & Formulas

Mathematical formulas and engineering constants powering this calculator.

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Patio Bedding Sand Formula

Total cubic yards required for uniform 1-inch bedding.

Bedding yd³ = (Patio Area sq ft × 1.0 inch) / 324
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Total Patio Sand Weight

Calculates dry sand tonnage needed for bedding plus joint filling.

Total Tons = (Bedding yd³ × 1.35) + Joint Sand Tons
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Joint Fill Bags

Calculates polymeric or kiln-dried joint sand bag count.

Joint Bags = ⌈ Patio Area / 80 sq ft ⌉