How To Install Backer Board Around A Shower Pan

How to Install Backer Board Around a Shower Pan

Installing backer board around a shower pan is an essential step in ensuring a watertight seal for your shower. Backer board is a moisture-resistant material that provides a solid surface for tile to be installed. It is installed directly over the shower pan and under the tile. ### Materials You Will Need - Backer board (cement board, Hardibacker, or Durock) - Thinset mortar - Adhesive notch trowel - Screwdriver - Backer board screws - Drywall knife - Tape measure - Pencil ### Step 1: Preparation Before installing the backer board, make sure the shower pan is level and secure. Clean the shower pan thoroughly with a degreaser to remove any dirt or debris. ### Step 2: Measure and Cut the Backer Board Measure the shower pan and cut the backer board to fit. The backer board should extend at least 2 inches beyond the edge of the shower pan. Use a drywall knife or utility knife to score and snap the backer board. ### Step 3: Apply Thinset Mortar Apply a thin layer of thinset mortar to the shower pan using an adhesive notch trowel. Create a 1/4-inch notch thickness. ### Step 4: Install the Backer Board Set the backer board in place on the shower pan. Press down firmly to ensure good contact with the thinset mortar. ### Step 5: Screw the Backer Board Drive backer board screws through the backer board and into the shower pan. Space the screws about 6 inches apart. Countersink the screws slightly below the surface of the backer board. ### Step 6: Fill Joints and Edges Use a drywall knife to fill any joints or gaps between the pieces of backer board with thinset mortar. Smooth the mortar over the joints and edges. ### Step 7: Let it Dry Allow the thinset mortar to dry completely before tiling. This may take several hours or overnight. ### Tips - When cutting backer board, wear a dust mask to avoid inhaling dust particles. - Use a backer board that is specifically designed for shower installations. - Do not install backer board on a plywood floor that is not moisture-resistant. - If the shower pan is not level, it can cause the backer board to crack or break. - Always follow the manufacturer's instructions for installing backer board.