Aluminum Stair Trims are commonly used because of their durability and resistance to corrosion. They can be flat or have a protrusion to better fit the edges of the stairs. These trims usually come in various dimensions and colors to match different interior styles. They can also have different textures, such as matte or glossy finishes. When installing stair trims, safety should be a priority to ensure they do not slip and pose a fall hazard.