Frosted Glass Shelf with Rail Di mention dia S e Installation for Drywall and Tile; 1. Using included template, mark screw positions. Use level to-ensure screw positions are level. . Using drift, drill guide holes at each screw location; . Insert screw anchors (2} into wall until flush with surface. . Attach brackets (3) to wall with lip up away fro wall and install screws (4) into bracket. . Install ase by lilting TOP edge lowland connect to:lop lip of bracket, then bring bottom edge-of base to-wall.