Schlüter -KERDI-BOARD- N are prefabricated niches for the easy installation of visually appealing shelves that are flush with the wall. The niche is installed between two studs in a stud wall structure. An additional substructure must be set up to support the niche flange in case of larger stud intervals. If the niche is installed in high-moisture areas, tiles on the shelf surfaces must be installed with a slope to prevent water from pooling in the final assembly.