Paver Stone Base Material Calculator
Calculate the amount of base material required for a paver stone project.
Quick Answer
Under pavers, use about 4–6 inches of compacted crushed stone plus 1 inch of bedding sand. Multiply area × depth in feet, divide by 27 for cubic yards, add about 20% for compaction, then multiply by 1.5 for tons of base.
Paver Base Material Calculator Guide
The paver base material calculator helps you determine the precise amount of crushed stone and leveling sand needed to create a stable foundation for paver patios, walkways, and driveways. A proper base is critical—it prevents settling, ensures longevity, and keeps pavers level and stable.
Professional paver installations require multiple layers: a compacted base layer of crushed stone (#57 or similar), followed by a leveling layer of coarse sand. This calculator accounts for both layers and your project dimensions to provide accurate material quantities in both cubic yards and tons. For related calculations, see our stone compaction calculator or stone patio calculator.
Proper base construction ensures pavers remain level and prevent water pooling, which can damage pavers and create safety hazards. The calculator considers standard industry recommendations: 4-6 inches of compacted crushed stone base, topped with 1 inch of leveling sand. Always add 5-10% extra for compaction factors and ensuring you have enough material to complete the job.
Get the Base Right and Everything Above It Lasts
A paver base is only as good as how well it's compacted and separated from the soil below. Loose base material settles unevenly, and that's what causes the sunken, wobbly pavers you see a year after installation. Running a plate compactor over the stone in two-inch lifts packs it to a solid, load-bearing layer that won't shift. Underneath it, a geotextile separation fabric keeps the crushed stone from sinking into and mixing with the soil, so your compacted base stays a clean, stable layer for the long haul.
Plate Compactor
Packs the stone base in lifts to a solid layer so pavers don't settle or wobble later.
Check Price on AmazonGeotextile Separation Fabric
Keeps crushed stone from sinking into the soil, preserving a clean, stable base.
Check Price on AmazonThe product links above are affiliate links — at no extra cost to you.
Frequently Asked Questions
How much base material do I need for pavers?
For a typical residential paver project: 4-6 inches of compacted crushed stone (#57) plus 1 inch of leveling sand. For example, a 20 ft × 30 ft patio needs approximately 22-25 cubic yards of crushed stone and 5.5 cubic yards of sand. Our calculator provides exact estimates for your dimensions.
What is the best crushed stone for paver base?
Use angular crushed stone, typically #57 stone (3/4 inch minus) for base layer. It compacts well, provides drainage, and doesn't retain water. Avoid rounded river rock or pea gravel—they don't compact adequately for stable paver foundations.
How thick should the leveling sand layer be?
Leveling sand should be 1-1.5 inches thick. Use coarse sand (not fine sandbox sand). This layer allows minor adjustments to level pavers while providing good bearing support. Don't over-compact this layer—it should remain slightly loose for paver adjustments.
Do I need to compact the base material?
Yes, compacting is critical. Use a plate compactor or hand tamper to compact crushed stone in 2-3 inch lifts until you reach desired finished depth. Proper compaction prevents settling and keeps pavers level long-term. The calculator includes compaction factors in material estimates.
How much does paver base material cost?
Costs vary by region and material: crushed stone typically £15-30 per ton, sand £20-40 per ton. For a 600 sq ft patio needing ~20-25 tons stone and 5-6 tons sand, expect £500-1,000+ in base materials. Our calculator provides quantity estimates; contact local suppliers for current pricing.