The 5" plaque back plate address sign panel is designed for the 5" house & letters. The back plate is available in the following sizes that accommodate a single digit or up to 4 numbers or letters. The mounting panels are machined from a solid piece of aluminum with a 4mm solid material thickness. The Plaque panel allow for a full row of 1.3" tall additional street name or personalized information to be cut into the metal. The 5" numbers / letters are mounted onto the panel which have pre-drilled holes based on the exact numbers and letters that have been order. Concealed mounting studs anchor the panel to the wall. The mounting panels are available in satin black, bronze, satin alu, white, rust or brass. How do you order the plate? The panel can only be ordered in conjunction with the 5" numbering system, the holes are pre-drilled for the numbers or letters you are ordering. Each panel is shipped fully assembled and only requires 1 x single electrical connection. Panel ship with additional spacers to float the panel off the wall.