Paver Base & Bedding Sand Calculator
Compacted gravel base and bedding sand quantities under a paver patio, path or driveway.
Bedding sand is SCREEDED at 25 mm, never used to fix base dips — thick sand ruts. Use concrete sand (sharp), not mason's sand, and compact the base in 100 mm lifts.
Formula
Paver Base & Bedding Sand Calculator is a free paver base calculator for civil engineers, contractors and quantity surveyors — instant, accurate and 100% client-side, with the governing formula and reference shown next to the result so the number can be defended, not just quoted.
About Paver Base & Bedding Sand Calculator
Compacted gravel base and bedding sand quantities under a paver patio, path or driveway. The calculation implements base mass = area × depth × 2.2 t/m³ (compacted); sand = area × 25 mm × 1.6 (ICPI Tech Spec 2 — base preparation). Bedding sand is SCREEDED at 25 mm, never used to fix base dips — thick sand ruts. Use concrete sand (sharp), not mason's sand, and compact the base in 100 mm lifts.
How to use Paver Base & Bedding Sand Calculator
- 1Enter Paved area in m².
- 2Enter Base depth (compacted) in mm (100 mm patio/walk · 150–250 mm driveway).
- 3Enter Bedding sand depth in mm.
- 4Read Base gravel, Base volume, Bedding sand instantly — no submit button needed.
- 5Need US units? Flip the SI/Imperial toggle and every field converts.
Why use Paver Base & Bedding Sand Calculator?
- ✓Implements the standard formula — base mass = area × depth × 2.2 t/m³ (compacted); sand = area × 25 mm × 1.6
- ✓Reference cited on-page: ICPI Tech Spec 2 — base preparation
- ✓One-click SI ⇄ Imperial toggle — values convert in place, physics stays in SI
- ✓Live worked example: the substitution recomputes from your numbers
- ✓Runs entirely in your browser — nothing uploaded, free forever
Frequently asked questions
What formula does the Paver Base & Bedding Sand Calculator use?+
It computes base mass = area × depth × 2.2 t/m³ (compacted); sand = area × 25 mm × 1.6, per ICPI Tech Spec 2 — base preparation. The formula is displayed under the result along with a worked example substituted with your own inputs.
What should I keep in mind when using this calculator?+
Bedding sand is SCREEDED at 25 mm, never used to fix base dips — thick sand ruts. Use concrete sand (sharp), not mason's sand, and compact the base in 100 mm lifts.
Does it include wastage?+
Yes — standard wastage/bulking factors are built in and stated in the formula line, so the quantity is an orderable number, not a bare geometric volume.
Is the Paver Base & Bedding Sand Calculator free to use?+
Yes — completely free, no sign-up, no limits. It runs client-side in your browser, so inputs stay private and results are instant even on slow connections.
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