As walls in the house are rarely perfectly flat, or straight, there can be unsightly gaps left after the cladding has been fitted. In most of these situations, a trim will be needed to cover up the cuts and gaps that are unsightly. This can be around internal and external edges, walls, ceilings and floors. Trims also serve the purpose of providing a nice clean edge to enhance the cladding, rather than just leaving the silicone. The Quarter Round Silver extrusion is an universal trim and is applied to fitted panels. Use this trim on all panel depths.