These CRL Petite Adjustable Shelf Grips are designed to work with 4 to 12 mm thick glass or wood shelves, up to 254 mm deep. For maximum strength in drywall installations, grips should be secured to a stud no more than 406 mm apart. In concrete installations quality anchors are recommended. The material directly behind the grip could have an effect on the grips performance. Hard materials such as concrete, tile or marble do not have the tendency to dent or collapse. However, depending on its condition, drywall can compress or dent and allow the front edge of the shelf to slant down. Therefore, the depth of the shelf and the amount of weight placed on it should be considered in this type of installation. Maximum recommended weight per pair of Shelf Grips correctly installed is 20 kg.

The grips are secured with one screw (included) to the substrate. An adjustment screw is also included to accommodate various glass thicknesses.