Add natural color and character to your landscape with 20mm Montana Rainbow Rock, a smooth decorative stone featuring a blend of warm earth tones. This rounded rock is a popular choice for creating vibrant, low-maintenance landscapes in both residential and commercial projects across Calgary.
Why Choose 20mm Montana Rainbow Rock?
- Multi-color blend – Browns, tans, greys, and subtle reds for a natural look
- Rounded, smooth texture – Clean finish that is comfortable underfoot
- Versatile 20mm size – Ideal balance for decorative and functional use
- Low maintenance – Helps reduce weeds when installed with landscape fabric
- Excellent drainage – Allows water to move freely through the rock
Common Uses
- Decorative ground cover for garden beds
- Pathways and walkways
- Around patios, pavers, and retaining walls
- Drainage zones and borders
- Rock gardens and landscape features
- Commercial landscape applications
Product Details
- Size: 20mm decorative rock
- Material: Natural river rock
- Color: Mixed earth tones (brown, tan, grey, subtle red)
- Shape: Rounded
- Coverage: Approx. 100 sq ft per cubic yard at 3" depth
- Delivery Method: Loose bulk by dump truck
Material Calculator
Enter your project dimensions below to estimate how much 20mm Montana Rainbow Rock you need.
Delivery Information
- Standard tandem delivery (1–10 yards): $120 within the City of Calgary
- Additional charges will apply for surrounding areas outside Calgary
- Same-day / next-day delivery may be available, but we recommend ordering 1–3 business days in advance
- Maximum 1 product type per tandem load
This product will be delivered loose by dump truck and dumped as per your instructions. Please visit our delivery page for delivery information and instructions prior to placing your order.
The driver will call when on route.
Ordering Instructions
- Please place each bulk order separately if you need different delivery days
- Sod and bulk deliveries can be staggered when ordered separately at checkout
- Placement and dump instructions can be coordinated during checkout
- Recommended lead time is 1–3 business days
Need Help Ordering?
Call 587-330-4200 for product availability, delivery pricing, and help calculating your order.
Want to see it in person? Visit our 2,500 sq ft yard display today.


