Budget Industrial 2x2 Bookshelf

Drill a single pocket hole on each end of the bottom leg support pieces. Rotate legs so pocket holes face the back. Attach to the legs at the bottom with 2-1/2" pocket hole screws and glue.

Attach the top with screws from above, or with pocket holes on the backs of the legs and 1-1/4" pocket hole screws.

Drill a pocket hole 3/4" in from each end of every shelf. Attach to the legs with 1-1/4" pocket hole screws and glue.

Check for square by comparing diagonal measurements and adjusting until they match. Attach the plywood back panels to the shelves and legs with 3/4" brad nails and glue.

Sand all surfaces and apply primer and paint or stain and poly. On final installation, anchor to a wall stud to prevent tipping.