1-4" Royal Cobble
Description
1-4″ Royal Cobble is a great choice for driveways and RV pads because it compacts well, stays in place, and creates a clean, durable surface. Its larger size also makes it a popular option for drainage applications and erosion control. It's also an excellent choice for residential and commercial xeriscaping projects. With its regal blend of silver-gray and slate tones accented by warm rust, copper, and olive highlights, this stone brings a rich, dimensional character that adds texture and visual interest to any landscape. Whether used as a decorative ground cover, a driveway material, or a drainage solution, 1-4″ Royal Cobble delivers both natural variation and lasting performance in virtually any application.
Quick specs
Available at Our Salt Lake County Landscape Center
This material is stocked in bulk at our Salt Lake County landscape center and is available for both pickup and delivery throughout the surrounding Utah areas. Customers are welcome to stop by and view the gravel in person, making it easier to compare size, color, and texture before placing an order.
Bulk Supply
We stock our landscape center with clearly marked bins so every product is easy to find and readily available.
Loaded by Equipment
Our team can quickly load larger quantities using skid steer loaders for fast and efficient pickup.
See it in Person
Stop by and get a feel for the material firsthand — no surprises when it arrives.
Available at This Location
Free Samples
Take home a free sample to make sure this material is the right fit for your project.
Pickup
We load trucks and trailers on-site using loaders, with no minimum purchase required.
Delivery
We offer delivery for orders of all sizes, from small quantities to large bulk loads.
Bagging
Bagging is available for pickup and delivery orders at an additional cost.
Live Support
Visit us in person or call or text our team with any questions—we’re here to help.
Installation Depth Guide — Cubic Yard Coverage for 1–4″ Royal Cobble
| Depth | Coverage per Cubic Yard | Recommendation |
|---|---|---|
| 2″ | ~150 sq ft | Too shallow |
| 3″ | ~100 sq ft | Not recommended |
| 4″ | ~80 sq ft | Minimum depth |
| 5″ | ~60 sq ft | Recommended |
| 6″ | ~50 sq ft | Ideal depth |
| 7″ | ~45 sq ft | Usually unnecessary |
| 8″ | ~40 sq ft | Excessive |
Note: Because this is a mixed cobble size ranging from 1" to 4", a typical installation depth is 4–5 inches to properly bed the larger pieces. Installing at 6 inches can offer added durability and longer-lasting coverage, especially in higher-use areas. Depths less than 4 inches may allow weed barrier or soil to become visible around the larger cobbles. When in doubt, test a small section first.
Product details, what you should know
- Sizing: Mixed cobble ranging from 1" to 4", giving a natural, varied look rather than a uniform single size. Some pieces may exceed 4", and the material will include smaller particles and fines as part of the natural mix.
- Cleanliness: Unwashed material with a presence of fines (typically less than 10-15%). Fines from production, handling and transport are normal.
- Appearance: Fractured stone featuring a dimensional blend of silver-gray and slate with rust, copper, and olive accents scattered throughout. Colors deepen and become more vibrant when wet. Color may vary slightly between loads.
- History: Material has remained generally consistent in size range and color over time, although occasionally transitions to more red heavy tones. The gray base with rust and olive accents is typical of this stone, with minor variation between loads as expected with any quarried material. Colors tend to appear more muted when dry and deepen noticeably when wet.
- Also known as: Commonly referred to as landscape gravel or decorative driveway rock.
1-4" Royal Cobble is a versatile, textured option that works especially well in accent beds, dry creek beds, and general landscaping where varied size adds visual interest. Its mixed 1-4″ range gives it a natural, tumbled-yet-fractured look and makes it particularly well suited for drainage applications and decorative borders. Worth noting — this stone has great wet color, with the grays deepening to slate and the rust and copper tones popping after rain, making it a great choice if you want something with dynamic, varied texture.
- Stock: In Stock
- Unit: Cubic Yard
- Weight: 2,500.00lb
- SKU: RKN-281-0001
- Bin Location: H5
