- for pdf
First, find the studs in the wall where you want to anchor your bookshelf. Use a pencil to mark the drill holes on both the wall and the shelf; hammer or drill a pilot hole in the marked spots; then screw the L-bracket to the side or underside of the shelf and to the wall. Mark their locations on the piece of lumber you cut, then place the lumber and drill a second set of pilot holes so that the holes in the lumber line up with those in the walls. Then screw the board to the wall with screws long enough to pass through the board and drywall and into the wall stud.