Build: 9 Cubby Bookshelf

1Build the outer frame

Tools

Drill / Driver
Pocket Hole Jig

Materials

1x12, 8 ft
1x12, 10 ft
Pocket hole screws, 1-1/4"

Build the top, bottom, and sides with 3/4" pocket holes and 1-1/4" pocket hole screws, placing pocket holes on insides and undersides so they don't show.

2Add the bottom trim

Tools

Brad Nailer

Materials

1x2, 8 ft
Brad nails, 1-1/4" and 3/4"
Wood glue

Attach the bottom 1x2 trim with 1-1/4" brad nails and wood glue.

3Add the shelves and dividers

Tools

Drill / Driver
Pocket Hole Jig

Materials

1x12, 8 ft
1x12, 10 ft
Pocket hole screws, 1-1/4"

Attach the shelves to the sides and dividers with 3/4" pocket holes and 1-1/4" pocket hole screws.

4Trim the shelf fronts

Tools

Brad Nailer

Materials

1x4, 8 ft
Brad nails, 1-1/4" and 3/4"
Wood glue

Attach the 1x4 trim to the fronts of the shelves with 1-1/4" brad nails and wood glue.

5Add the back and finish

Tools

Brad Nailer
Random Orbit Sander

Materials

1/4" plywood or hardboard, full sheet (4' x 8')
Brad nails, 1-1/4" and 3/4"
Wood glue

Add the plywood back with glue and 3/4" brad nails, nailing it to all the dividers and shelves it crosses, not just the perimeter — this is what keeps the whole grid rigid. Sand and finish.