Material calculator
Paver calculator — pavers, base & sand
Estimate pavers, compacted crushed-stone base, bedding sand, and polymeric sand from your patio or walkway area. The waste control represents the pattern allowance: 10% straight, 15% diagonal, or about 22% circular/fan.
You'll need
881 pavers
Pavers
- Crushed-stone base
- 2.47 cubic yards
- Bedding sand
- 0.62 cubic yards
- Polymeric sand
- 3 50 lb bags
What this assumes
- 200 ft² ÷ 0.250 ft² per paver, +10% pattern/cut waste.
- 4 in crushed-stone base and 1 in bedding sand are converted with 27 ft³ per yd³.
- Polymeric sand uses the spec default of 85 ft² per 50 lb bag for tight 1/8 in joints.
Coverage rates & sources
Every number this calculator uses is a published engineering constant — not an estimate we made up. Here is exactly what it assumes and where each value comes from.
- Square inches per square foot: 144 in²/ft²Source: Standard unit conversion (12² = 144)
- Straight-lay paver waste: 10%Source: Standard hardscape allowance for cuts/breakage (industry rule of thumb; Lowe's/Inch Calculator paver guidance)
- Diagonal paver waste: 15%Source: Standard for diagonal/herringbone layouts
- Circular/fan paver waste: 22%Source: Standard for circular patterns (20–25% range, default mid)
- Patio base depth: 4 inSource: Standard compacted crushed-stone base for pedestrian patios (Lowe's/ASPIRE install guidance)
- Bedding sand depth: 1 inSource: Standard screeded bedding-sand layer
- Polymeric sand coverage: 85 ft²/50 lb bagSource: Manufacturer typical (Sakrete/Techniseal/Alliance Gator: ~75–100 ft² tight joints; 85 mid-default)
- Cubic yard: 27 ft³Source: Standard unit conversion (1 yd = 3 ft -> 3³ = 27)
Before you buy
- Paver count assumes one paver size laid edge-to-edge with no border course; mixed sizes, borders, and soldier courses change the count.
- Polymeric-sand coverage drops sharply with wider joints; a 1/4–3/8 in joint can fall to roughly 25–40 ft² per bag, so check your bag's chart.
- Base depth assumes well-drained soil; clay, poor drainage, or vehicular traffic needs more base.
This is a planning estimate, not a substitute for a pro's on-site measurement. For load-bearing, structural, or code-regulated work, confirm quantities with a licensed contractor.
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