A corner trim is usually a 90-degree L shaped profile which is used to protect or finish corners and edges. Some other forms are available such as corner joints.
These profiles are designed to cover and neaten external or internal corners, offering a defined finish and helping to reduce visible wear on edges. They have a fixed L-shaped form and are often referred to as plastic angle trim or L shaped plastic trim. At MKM Extrusions, corner trims are made from external grade rigid PVC and are suitable for both indoor and outdoor use. Stock profiles are available in black or white and in a wide range of sizes.