Road Crush in Calgary — 20mm Minus Crushed Gravel for Driveways and Base
Road crush — the 20mm minus crushed gravel with fines that compacts hard — is the workhorse aggregate of Calgary. Driveways, parking pads, shed pads, RV pads, and roadway base all spec it. Dirtlink connects you with Calgary pits, recyclers, and yard suppliers in one searchable list.
What road crush is
Road crush is crushed gravel sized at 20mm and below, including fines (the small particles that lock the rock together when compacted). The fines are what differentiate road crush from clear crush — they're what makes the material compact into a hard, durable surface.
Common Calgary uses
- Driveways — 4–6" of road crush over a compacted subbase.
- Parking pads — same spec.
- Shed and RV pads — 4" minimum, well-compacted.
- Roadway base — under asphalt or concrete in commercial work.
- Trench backfill — when a compactable spec is needed.
How much road crush do you need?
- 4" deep: 1 cubic yard per 80 sq ft
- 6" deep: 1 cubic yard per 55 sq ft
A typical 20'x40' driveway at 4" depth needs ~10 cubic yards.
Recycled vs. virgin road crush
Recycled crushed concrete (RAP-concrete) is often sold as a road crush alternative in Calgary at a lower price point. It compacts well and is suitable for most non-engineered applications. See the Recycled Concrete page.
Frequently asked questions
What size is road crush in Calgary?
How much road crush for a driveway in Calgary?
Should I compact road crush?
Can I use road crush under pavers?
What does road crush cost in Calgary?
Find road crush in Calgary
From local pits and recyclers. Filter by load size and delivery zone.