40mm Rundle Rock Calgary | Loose Bulk Delivery
Our 40mm Rundle Rock is a natural decorative landscape stone featuring deep charcoal and black tones with a distinctive angular, fractured texture. Its larger size creates a bold appearance in garden beds, landscape borders and outdoor features throughout Calgary and surrounding communities.
Available by the cubic yard with convenient loose bulk delivery, 40mm Rundle Rock is a popular choice for modern landscaping, rock gardens, decorative ground cover and commercial landscape projects. The dark natural stone provides strong contrast against lawns, plants, paving stones and retaining walls.
Explore additional decorative stone options in our Gravel, Sand & Aggregates Calgary collection .
Ideal Uses for 40mm Rundle Rock
- Decorative ground cover for larger garden beds
- Bold charcoal accents in modern landscape designs
- Rock gardens and natural landscape features
- Landscape borders around patios and retaining walls
- Low-maintenance decorative areas and xeriscaping projects
- Commercial landscape features and entrance areas
Product Specifications
| Product | 40mm Rundle Rock |
|---|---|
| Stone Size | Approximately 40mm nominal size |
| Material | Natural Rundle stone |
| Appearance | Angular, fractured stone in dark charcoal and black tones; natural colour and size variations occur |
| Order Unit | Cubic yards (loose bulk) |
| Coverage | Approximately 100 sq. ft. per cubic yard at 3 inches deep (planning allowance) |
| Delivery | Loose bulk by dump truck |
| Maximum Order | 10 cubic yards per delivery order |
| Service Area | Calgary and surrounding communities |
How Much 40mm Rundle Rock Do You Need?
Enter your project dimensions to estimate how many cubic yards of loose 40mm Rundle Rock you need. The calculator updates automatically and rounds up to the next half cubic yard for planning.
Rundle Rock Quantity Calculator
Enter your project length, width and desired rock depth.
Estimates use loose material volume. Actual requirements may vary depending on ground conditions, grading and installation. Quantities are rounded up to the next 0.5 cubic yard. Maximum 10 cubic yards per delivery order.
Planning multiple landscape areas? Use our Advanced Bulk Volume Calculator for more detailed material estimates.
40mm Rundle Rock Coverage Guide
One cubic yard of loose 40mm Rundle Rock provides approximately the following coverage at different installation depths:
| Rock Depth | Coverage Per Cubic Yard |
|---|---|
| 1 inch | Approx. 324 sq. ft. |
| 2 inches | Approx. 162 sq. ft. |
| 3 inches | Approx. 108 sq. ft. |
| 4 inches | Approx. 81 sq. ft. |
For ordering, allow approximately 100 sq. ft. per cubic yard at a 3-inch depth as a planning allowance. Because 40mm Rundle Rock is a larger decorative stone, select a depth that provides the appearance and coverage required for your project. A 1-inch layer is generally too shallow to fully cover the surface with 40mm stone.
Why Choose 40mm Rundle Rock for Landscaping?
The larger 40mm size creates a bolder decorative appearance than smaller landscape gravel. Its charcoal-black colour and fractured texture make it especially effective in modern landscape designs and areas where a strong contrast is desired.
Rundle Rock complements light-coloured paving stones, retaining walls, concrete features and green planting areas. Its angular shape provides a natural, textured finish that works well in properly edged decorative landscape beds.
For suitable garden beds, landscape fabric can help separate the stone from underlying soil and reduce weed growth. The 40mm product is intended primarily for decorative landscaping rather than compacted structural base applications.
Loose 40mm Rundle Rock Delivery in Calgary
Our 40mm Rundle Rock is delivered loose by dump truck throughout Calgary and surrounding communities. Material is typically unloaded on a suitable driveway or approved street-side area.
Enter your preferred dump location and access instructions at checkout. Final unloading placement is subject to driver discretion and site conditions.
Available delivery options and charges are calculated at checkout based on your address and order. Flex and Scheduled delivery may be available, with same-day service offered for qualifying loose bulk orders when scheduling and routing allow.
Orders are limited to 10 cubic yards per load. If you need two different loose bulk materials, eligible split-load delivery may be available, with additional charges where applicable.
Review our Bulk Landscape Material Delivery Calgary guide for delivery scheduling and unloading requirements.
Frequently Asked Questions About 40mm Rundle Rock
What is 40mm Rundle Rock used for?
40mm Rundle Rock is commonly used for decorative garden beds, landscape borders, rock gardens, xeriscaping and feature areas around patios, retaining walls and commercial properties.
What is the difference between 25mm and 40mm Rundle Rock?
Both products feature natural charcoal-coloured Rundle stone. The 25mm size creates a finer, more detailed decorative finish, while 40mm Rundle Rock has a larger, bolder appearance suited to prominent landscape features.
What colour is 40mm Rundle Rock?
Rundle Rock features natural dark charcoal and black tones. Colour varies between stones, and the appearance may change when the rock is wet or dry.
How much 40mm Rundle Rock do I need?
Use the calculator above to enter your project length, width and desired depth. One cubic yard covers approximately 108 square feet at a 3-inch depth before allowing for installation variations.
Is 40mm Rundle Rock suitable for garden beds?
Yes. The larger stones provide decorative ground cover with a bold natural appearance. Proper edging and site preparation help maintain a clean finished landscape.
Is 40mm Rundle Rock suitable for driveways?
Decorative Rundle Rock is not intended as a compacted structural driveway base. A properly graded base aggregate is generally more appropriate for projects requiring a firm, compacted foundation.
How is loose 40mm Rundle Rock delivered?
Loose Rundle Rock is delivered by dump truck and unloaded at a safe, accessible location. Customers provide preferred unloading instructions at checkout, with final placement determined by the driver.
Is delivery included in the Rundle Rock price?
Delivery is calculated separately at checkout based on your order and delivery location.



