elfa® Mounted Standards are attached directly to a wall or stud with standard elfa® Installation Hardware. Both elfa® Ventilated Shelf Brackets and elfa® Solid Shelf Brackets can be used with Mounted Standards. The most frequent uses for Mounted Standards are to maximize the space on a sloped wall, to install a single shelf in a bathroom or laundry area, or on exposed studs in garages or storage rooms. elfa® Mounted Standards are also the backbone of the elfa® Door & Wall Rack System and the elfa® Door & Wall Rack System for Media.