Trim Dimensions 1/4 in deep x 1/8 in channel opening Surface Mount Tile Cap Trim Installation This trim is designed to be used around our surface mount tiles when a cut is made and a raw edge would be exposed (e.g., on an outside wall). It is installed by using a 1/2 in wide double sided tape (please visit our Accessories page). THE MAXIMUM LENGTH AVAILABLE IS 48 INCHES. ORDERS PLACED THAT EXCEED THIS LIMIT WILL BE ADJUSTED ACCORDINGLY.