In order to properly install Wedi Board onto a permanent substrate or hang Wedi panels, hanging kits are required. Wedi corp has assembled 2 kits with all of the appropriate washers and assorted hangers and screws necessary for each installation type. The Wedi Wall Hanging Kit includes the necessary hardware to install your Wedi directly to another substrate. The kit includes 4 Wedi Washers and a variety of screws and wall anchors. Appropriate for Wedi Board up to 24" x 24". Any larger installation requires additional kit. Mounting instructions included.