Large natural armor stones along a shoreline, illustrating erosion control and the difference between armor stone and standard riprap.
Erosion control projects come in all sizes. While standard riprap is well suited for many applications, some projects require significantly larger stone and greater stability.
That’s where Armor Stone comes in.
As Landmark Materials’ largest format of riprap, Armor Stone is designed for applications where strength, durability, and long-term performance are essential. Its substantial size makes it an option for demanding projects while maintaining the natural appearance of quarried stone.
What Is Armor Stone?
Armor Stone consists of large natural stones used in applications where smaller riprap may not provide the size or stability a project requires.
Because of its scale and weight, Armor Stone can help create a durable protective barrier in areas exposed to erosion, moving water, changing grades, or other demanding site conditions.
It also offers an advantage that goes beyond performance: a natural appearance.
Rather than introducing a manufactured-looking material into a shoreline or landscape, Armor Stone can integrate naturally into the surrounding environment.
Where Is Armor Stone Used?
The appropriate material for any project depends on its specific requirements, but Armor Stone is commonly used for several types of large-scale applications.
Shoreline Protection
Water can gradually reshape an unprotected shoreline through erosion. Large stone can be incorporated into shoreline protection projects to provide a substantial barrier while maintaining a natural look along the water.
Erosion Control
When an erosion-control application requires material larger than traditional riprap, Armor Stone provides another option for projects that demand greater size and stability.
Retaining Walls
The size and natural variation of Armor Stone also make it suitable for certain retaining-wall applications. The finished result can provide both structural function and the appearance of a natural stone feature.
Landscape Features
Armor Stone isn't limited to purely functional applications. Large-format natural stone can also become a prominent landscape element, particularly on properties where the scale of smaller landscape stone would get lost.
Armor Stone vs. Standard Riprap
The biggest difference is exactly what you would expect: scale.
Landmark Materials offers several riprap sizes for applications ranging from drainage and ditch lining to slope stabilization, culvert outlets, riverbanks, and coastal protection.
Armor Stone takes that progression one step further.
For projects requiring an especially large-format natural stone, Armor Stone provides an option beyond Landmark Materials' standard riprap offerings.
Choosing between the two shouldn't simply come down to selecting the largest stone available. The appropriate material depends on the application and specifications of the individual project.
Planning a Project That Requires Armor Stone?
Because Armor Stone is a specialty, large-format material, Landmark Materials offers Armor Stone by preorder only.
Planning ahead gives the Landmark Materials team an opportunity to discuss your project needs and coordinate material availability before it is needed on site.
Whether you're sourcing material for shoreline protection, erosion control, a retaining wall, or a large-scale landscape feature, Landmark Materials can help you find the right material for the job.
Contact Landmark Materials at 678-306-1660 to discuss Armor Stone availability and preorder options for your upcoming project.