Rundle rock is Calgary's most iconic landscaping material — and for good reason. Named after the Rundle mountain range right here in Alberta, this is a genuinely local rock with a look that fits naturally in Calgary yards, acreages, and commercial properties. The smooth, grey-toned surface weathers beautifully outdoors and holds up through Alberta winters without cracking, fading, or shifting.
What makes Rundle rock different
Unlike crushed limestone or angular gravel, Rundle rock is a rounded quartzite — dense, hard, and naturally smooth from years of weathering. The 40mm size is large enough to stay in place without shifting underfoot, drain well between rocks, and create a clean, finished look that smaller rock can't match.
What it's used for
- Garden beds and borders — one of the most popular ground covers in Calgary. Suppresses weeds, retains moisture, and looks sharp year-round
- Pathways and walkways — the rounded surface is comfortable underfoot and stays stable with light traffic
- Driveways and parking pads — large enough to handle vehicle traffic as a decorative surface layer over a compacted base
- Rock gardens — the natural grey tones and varied texture make it a go-to for alpine and xeriscape designs
- Retaining walls and feature walls — used as infill and accent material alongside larger boulders
- Water features — ponds, waterfalls, and stream beds — the smooth surface and natural colour look right at home around water
- Low-maintenance yards — replace grass in high-traffic or hard-to-water areas with a clean rock finish that never needs mowing
Why 40mm
The 40mm size hits the sweet spot for most Calgary landscaping projects — large enough to look intentional and stay put, small enough to spread easily and conform to curved beds and edges. If you want a bolder look, we also carry larger Rundle rock sizes.
How much do you need?
For a 3-inch layer, budget roughly 1 cubic yard per 100 square feet. Use our free calculator to get your exact number.
Where we deliver
Same-day bulk delivery across Calgary, Airdrie, Chestermere, Cochrane, Okotoks, and Langdon.
📞 403-510-9011