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#4 gravel is a large, durable aggregate consisting of smooth to naturally rounded stones typically ranging from approximately 1.5 inches to 2.5 inches. It provides the natural appearance and free-draining performance associated with rounded gravel while offering substantially more weight, texture, and stability than standard pea gravel.
Its larger particle size creates a bold, substantial surface that works well in both functional and decorative applications. The rounded stones provide natural color variation and a softer appearance than angular crushed aggregate, making #4 gravel especially attractive in landscape beds, dry creek features, drainage zones, and large outdoor installations.
Open spaces between the individual stones allow water to move freely through the installed layer. This makes #4 gravel a dependable option for drainage systems, culvert areas, large pipe bedding, runoff channels, and other projects where unrestricted water movement is important.
The substantial size and weight help the material remain in place more effectively than smaller rounded gravel. When properly contained and installed, it performs well in areas exposed to rainfall, surface runoff, changing weather, and routine site activity.
#4 gravel can provide stable support around large drainage pipes and utility structures while allowing water to flow through the surrounding aggregate. Its rounded shape also makes it useful in installations where a less abrasive stone surface is preferred around certain pipes, liners, or landscape features.
In erosion-control and stabilization projects, the large stones help protect exposed soil from direct water impact and provide durable ground coverage over soft or wet areas. The material may also be incorporated into drainage swales, washout zones, and low areas where smaller gravel could move more easily.
For decorative landscaping, #4 gravel creates strong visual texture and natural definition around trees, shrubs, ponds, patios, and large planting beds. It can be used alone or combined with smaller river rock, boulders, plants, and hardscape materials to create layered outdoor designs.
Durable, weather resistant, and low maintenance, #4 gravel does not decompose or require frequent replacement. Its combination of natural appearance, dependable drainage, substantial coverage, and long-term performance makes it suitable for residential, commercial, agricultural, and construction projects.
Common Applications of #4 Gravel
- Drainage systems and large pipe bedding
- Culvert and drainage channel support
- Erosion control and washout protection
- Decorative landscape beds and borders
- Dry creek beds and water features
- Ground cover around trees and shrubs
- Stabilization over soft or wet areas
