20mm Montana Rainbow Rock – Loose Bulk Delivery
- Regular price
- $120.00
- Sale price
- $120.00
- Regular price
-
- Unit price
- per
Loose soil, mulch, gravel and decorative rock delivered to your driveway or curbside.
Delivery rates vary based on the products ordered and delivery location. Final pricing is calculated at checkout.
Delivery FAQs & Placement Information →
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20mm Montana Rainbow Rock Calgary | Decorative River Rock Delivery
20mm Montana Rainbow Rock is a colourful natural decorative stone featuring a blend of brown, tan, grey and reddish earth tones. Its rounded appearance creates an attractive landscape finish for garden beds, rock gardens, borders and outdoor features throughout Calgary and surrounding communities.
Also searched for as Montana River Rock, Rainbow Rock and Alberta Rainbow Rock, this approximately 20mm aggregate is a popular alternative to traditional grey or charcoal landscaping stone. The natural colour variation adds character to residential and commercial landscapes.
Available loose by the cubic yard, 20mm Montana Rainbow Rock can be delivered directly to your property by dump truck.
Why Choose 20mm Montana Rainbow Rock?
- Natural blend of brown, tan, grey and reddish stone
- Rounded shape creates a smooth decorative appearance
- Approximately 20mm stone size for detailed landscape applications
- Durable mineral ground cover that does not decompose like organic mulch
- Suitable for decorative areas where water can pass between stones
- Complements natural stone, concrete, plants and outdoor features
- Available by the cubic yard for projects of different sizes
Ideal Uses for Montana Rainbow Rock
- Decorative garden beds and planting areas
- Landscape borders and edging
- Rock gardens and natural landscape features
- Around patios, stepping stones and retaining walls
- Decorative drainage areas where the specified aggregate is suitable
- Residential and commercial landscaping
Rounded decorative rock can shift underfoot and is not a compactable structural base. For frequently used pathways, consider whether a more stable surface is appropriate.
Product Specifications
| Product | 20mm Montana Rainbow Rock |
|---|---|
| Stone Size | Approximately 20mm |
| Material | Natural decorative river rock |
| Colour | Mixed brown, tan, grey and reddish earth tones |
| Shape | Rounded natural stone |
| 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 Load | 10 cubic yards combined per load |
| Service Area | Calgary and surrounding communities |
How Much Montana Rainbow Rock Do You Need?
Enter your project dimensions to estimate the amount of decorative rock required. The calculator updates automatically and rounds up to the next half cubic yard for ordering.
Montana Rainbow Rock Quantity Calculator
Enter the length, width and desired rock depth.
Quantities are estimates based on volume and rounded up to the next 0.5 cubic yard. Actual requirements vary with surface conditions and installation. Maximum 10 cubic yards combined per delivery load.
Have multiple areas to calculate? Use our Advanced Bulk Volume Calculator .
Montana Rainbow Rock Coverage Guide
One cubic yard of decorative rock provides approximately the following coverage:
| Rock Depth | Coverage Per Cubic Yard |
|---|---|
| 2 inches | Approx. 162 sq. ft. |
| 3 inches | Approx. 108 sq. ft. |
| 4 inches | Approx. 81 sq. ft. |
| 6 inches | Approx. 54 sq. ft. |
These are volume-based estimates, not recommended depths for every application. For general landscape planning, allow approximately 100 square feet per cubic yard at 3 inches deep.
What Makes Montana Rainbow Rock Different?
Unlike single-colour decorative aggregates, Montana Rainbow Rock combines several natural earth tones in one material. Individual stones may display brown, tan, grey and reddish colouring, creating a varied appearance across the finished area.
Its rounded shape offers a different look from angular decorative rock such as Rundle Rock or fractured limestone. This makes it suitable for projects where a natural river-rock appearance is preferred.
Stone colours can appear richer when wet and lighter when dry. Because this is a natural aggregate, colour, size and shape may vary between loads.
Installing 20mm Montana Rainbow Rock
Prepare the landscape area by removing weeds, debris and unwanted vegetation. Grade the surface as needed before installing the decorative stone.
Landscape fabric may be used where appropriate to help separate the rock from the underlying soil. Secure edging can help contain the rounded stones and maintain clean borders.
Spread the material evenly to the desired depth. Approximately 2 to 3 inches is commonly used for decorative rock beds, depending on the project and site conditions.
Montana Rainbow Rock is intended primarily for decorative landscaping. It should not be substituted for specified washed drainage aggregate, engineered base gravel or other structural materials without confirming suitability.
Montana Rainbow Rock Delivery in Calgary
Order 20mm Montana Rainbow Rock by the cubic yard with loose bulk dump truck delivery throughout Calgary and surrounding communities.
Material is typically unloaded on a suitable driveway or approved street-side location. Enter your preferred dumping area and access instructions during checkout. Final placement depends on safe site conditions and driver discretion.
Available delivery options and charges are calculated at checkout based on your address and order. Flex and Scheduled delivery may be available. Same-day service may also be offered for qualifying loose bulk orders when routing permits.
Orders are limited to 10 cubic yards combined per load. Eligible split-load delivery of two different loose bulk materials may be available, with additional charges where applicable.
Review our Bulk Landscape Material Delivery Calgary guide for delivery scheduling and unloading information.
Frequently Asked Questions About Montana Rainbow Rock
What is Montana Rainbow Rock?
Montana Rainbow Rock is a natural decorative aggregate featuring rounded stones in a mixture of earth tones. It is commonly used for garden beds, landscape borders and decorative rock features.
What colours are in Montana Rainbow Rock?
The material typically contains brown, tan, grey and reddish tones. Natural variation should be expected.
Is Montana Rainbow Rock the same as river rock?
Montana Rainbow Rock is a rounded decorative stone with a river-rock appearance. Its distinctive feature is the blend of natural colours.
What is 20mm Montana Rainbow Rock used for?
Common applications include garden beds, landscape borders, rock gardens, decorative features and selected drainage areas where the material is suitable.
How deep should Montana Rainbow Rock be installed?
Approximately 2 to 3 inches is commonly used for decorative landscaping. The appropriate depth depends on the project and underlying surface.
Is Montana Rainbow Rock suitable for pathways?
It can be used decoratively around pathways and stepping stones. However, rounded stones can move underfoot, so they may not provide the most stable surface for frequently travelled walkways.
Does Montana Rainbow Rock help with drainage?
Water can pass through spaces between the stones. For engineered drainage applications, confirm the required aggregate size, cleanliness and specifications before ordering.
Does decorative rainbow rock require landscape fabric?
Landscape fabric may be useful for separating decorative rock from soil. Whether it is needed depends on the landscape design and site conditions.
How much Montana Rainbow Rock do I need?
Use the calculator above to estimate your order. One cubic yard covers approximately 108 square feet at 3 inches deep before allowing for installation variation.
How is Montana Rainbow Rock delivered?
It is delivered loose by dump truck to a suitable unloading area. Enter placement instructions during checkout. Final unloading is subject to driver discretion.
Is delivery included in the rock price?
Delivery charges are calculated separately at checkout based on your order and delivery location.
Explore More Decorative Rock
Compare Montana Rainbow Rock with other natural stone options in our Calgary Gravel, Sand and Aggregates Collection .