MDF Mounted Tile Edging Trim Installation This trim is designed to be used around the perimeter of MDF mounted tiles as needed. It is installed by using a 1/2 in wide double sided tape (please visit our Accessories page). Cutting This trim can be cut to the size that you need with a bandsaw with a metal cutting blade or with a dremel with a cut off disk installed. Other Trim Options For other available trim options, please visit our custom trim category.