Best Base for Pavers in Alberta | Calgary Hardscape Guide
How to Choose the Right Base for Pavers in Alberta
In Calgary, most patio failures aren’t caused by the pavers — they’re caused by poor base preparation. The base is what prevents frost heave, sinking, and shifting.
Why Base Preparation Matters
Without a proper base:
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Pavers will sink
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Water will pool
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Frost heave will lift and separate stones
Best Base Materials for Calgary
✔ Road Crush (Class 20 / 25mm Road Crush)
Great for compaction and drainage. The most commonly used base for patios and walkways.
✔ Limestone
Compacts extremely well and creates a solid foundation.
✔ Washed Rock (for Drainage Layers)
Used in high-moisture areas or under retaining walls.
Proper Base Depth
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Walkways & patios: 6–8 inches compacted
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Driveways: 10–12 inches compacted
Compacting Is Non-Negotiable
Always compact in layers (lifts). Skipping compaction is the fastest way to ruin a project.