Stone Dust Calculator
Estimate the required amount of stone dust for base layers.
Paver Base Material Calculator
1. Project Type & Dimensions
2. Base Layers & Materials
Enter the final, compacted depth you want to achieve.
3. Advanced Options & Costs
Your Base Estimate
Enter your project details to calculate the materials for your foundation.
Using the Stone Dust Calculator for a Perfect Base
The stone dust calculator is designed for a very specific but critical task: calculating the material needed for the final leveling layer of a paver patio, walkway, or artificial turf installation. Stone dust, also known as screenings or paver base, is a fine, powder-like aggregate that fills the small voids between larger base stones.
When moistened and compacted, stone dust creates an incredibly firm, almost concrete-like surface. This provides a perfectly smooth bed for setting pavers, preventing them from shifting or becoming uneven over time. Our calculator helps you estimate the precise amount of stone dust in tons, needed for that crucial 1-inch setting bed.
Frequently Asked Questions
How deep should stone dust be for a paver patio?
The standard depth for the stone dust (or paver sand) setting bed is exactly 1 inch. This layer goes on top of your 4-6 inch compacted crushed stone base.
Do you need to compact stone dust?
Yes, absolutely. After spreading the stone dust and leveling it with a screed, you should lightly moisten it and run a plate compactor over it to create a firm, stable base before laying pavers.
Is stone dust the same as sand for a paver base?
They serve a similar purpose, but stone dust contains very fine particles that allow it to compact much harder than coarse paver sand, making it a more stable, weed-resistant option for the setting bed.
Can I use stone dust for a whole driveway base?
No, stone dust is not suitable as a primary base material. It does not drain well on its own and can hold water, leading to problems in freeze-thaw cycles. It should only be used as a thin top layer over a proper crushed stone base.
How many tons of stone dust do I need?
For a 100 sq ft patio, you will need approximately 0.4-0.5 tons of stone dust for the 1-inch setting bed. Use our calculator to get a precise figure for your project's area.
Does stone dust help prevent weeds?
Yes, because it compacts so tightly, stone dust creates a very effective barrier that helps to inhibit weed growth from below your pavers.