Rip Rap (6 - 18")

Rip Rap (6 - 18"): Large Stone Solution for Erosion Control and Slope Protection

Rip Rap (6 - 18") consists of large, angular stones with individual pieces ranging from 6 to 18 inches in diameter and weighing approximately 30 to 400 pounds each. This product is also known as riprap, rock armor, shot rock, rubble, erosion stone, or armor stone. Rip Rap is made from durable, hard rock such as granite or limestone, with irregular shapes that interlock for stability. The color is typically gray or natural stone. Stones are loose-laid and not mortared, providing a heavy, permeable layer that resists erosion and displacement.

Rip Rap (6 - 18") is designed for use in demanding environments where soil needs protection from water flow or wave action. It is not intended for walkways, paths, or any area expecting foot traffic. The large size and irregular shape make it unsuitable for decorative landscaping where a uniform appearance is required. Rip Rap is not a structural fill or compacted base material and should not be used under pavements or where fine filtration is needed without a filter layer.

Key Technical Characteristics

• Stone sizes: 6 to 18 inches (diameter), approximately 30 to 400 lbs per piece
• Material: Durable, hard rock such as granite or limestone
• Shape: Angular, irregular for interlocking placement
• Color: Typically gray or natural stone
• Loose-laid, not mortared
• High resistance to erosion and displacement
• Meets ASTM D6092 standards
• May contain up to 15% oversized stones (up to 3 feet in length)
• Minor dirt content possible due to handling and transport

Common Applications

• Shoreline, riverbank, and streambed erosion control
• Slope stabilization on embankments and hillsides
• Bridge abutment and culvert outlet protection
• Channel lining and flow control
• Dam, spillway, and jetty protection
• Retaining wall backfill (as a drainage layer)
• Wave energy dissipation in marine environments

Performance and Installation Considerations

Rip Rap (6 - 18") is chosen for its ability to withstand high-energy water environments where smaller aggregates would be displaced. The angular stones interlock, providing mechanical stability and resistance to movement. The voids between stones allow water to drain, reducing hydrostatic pressure behind structures. Proper installation requires the stones to be placed on a prepared base, often with a filter fabric or bedding layer beneath to prevent soil migration and support drainage. Placement thickness is typically 1.5 to 2 times the maximum stone diameter.

This product is not suitable for areas where a smooth, walkable surface is needed. It should not be used as a structural fill or compacted base under pavements. Rip Rap is not intended for use in locations with water velocities that exceed the design limits for the specified stone size. It is also not appropriate for decorative landscaping applications where a uniform appearance is required.

Comparison to Other Solutions

Practical Guidelines and Limitations

• Not for use on paths or walkable surfaces
• Not suitable as a base for pavements or structural fill
• Should not be used where fine filtration is required without a filter layer
• Requires heavy equipment for handling and placement
• Material may include minor dirt and up to 15% oversized stones

Rip Rap is sourced from quarries that meet DOT or USACE standards. Material is sound, durable, and free of organic content. Gradation and density requirements are specified by project needs. For placement, ensure the receiving site can accommodate heavy trucks and equipment, and follow all safety protocols for handling large stones.

Sample Pricing for Rip Rap (6 - 18")

Rip Rap pricing varies by location due to sourcing and delivery logistics. Below is a selection of price examples from different US regions. All prices include delivery to the specified ZIP code. For the most accurate pricing, enter your ZIP code on our website.

Prices are subject to variation based on location, availability, and order size. Delivery is included in all displayed prices. For a full quote or to check minimum order requirements, please use the calculator on our website or contact us directly.

Ordering and Delivery with Gravelshop

Gravelshop provides Rip Rap (6 - 18") in bulk quantities suitable for civil, environmental, and construction projects. Orders can be placed online in less than a minute. Delivery is included in the price and is available across the US. You can select your preferred delivery date and time slot (morning or afternoon) during checkout. All deliveries require suitable site access for heavy trucks. We do not offer spreading or installation services; material is delivered and unloaded at the most appropriate accessible location.

After placing your order, you will receive a confirmation email with all details. Our team is available for support by phone, email, or SMS. For the most accurate pricing, enter your ZIP code on our website and view instant, location-matched rates. If you have specific requirements or need a larger order, please contact us for a detailed quote. All transactions are governed by US law, and our terms and conditions apply. Payment can be made online using major credit cards and digital wallets. We supply only the material; customers are responsible for placement and installation.

Summary Table: Rip Rap (6 - 18") Key Details

For further details, coverage calculators, and to view local pricing, visit our website. Gravelshop is committed to providing clear information, accurate sizing, and reliable delivery for all your aggregate needs.