Keystone Victorian Stone is made of high-strength, low absorption concrete for long lasting structures.
All structural units are interconnected using high-strength fiberglass pins for strong shear connection. The connecting pins allow for ease-of-unit alignment and a secure positive mechanical connection withsoil reinforcement materials. Keystone’s patented fiberglass pin system is the critical difference providing the safety and security of a structural retaining wall solution.
Keystone Victorian Stone walls can be built to great heights with proper engineering.