Extra Wide Media Base (Modular Playroom Storage Wall)

Drill 3/4" pocket holes on each end of the 23" center shelf, three per 21" side, on the bottom. Drill three 3/4" pocket holes facing upward on the vertical divider pieces for attaching to the top. Assemble the shelf and dividers.

Attach the shelf-and-divider assembly to the underside of the top with 1-1/4" pocket screws, measuring carefully for a 13-3/4" space at each end. This is best done upside down.

Drill three 3/4" pocket holes on the top edges of each side. Tack them in place with brad nails first so they don't slip, then screw together with 1-1/4" pocket screws.

Drill pocket holes on each end of the bottom shelf and attach it to the sides with 1-1/4" pocket screws. Nail and screw it to the vertical dividers as well.

Use 1-1/4" brad nails to attach the 1x2 trim pieces to the insides of the cubbies.

Carefully cut the back piece dead square. Apply glue to the back edges of the cabinet and attach the 1/4" back with 3/4" brad nails, keeping all outside edges perfectly aligned — the back is what squares the carcass.

Measure and cut the base moulding and nosing to fit, and attach with glue and brad nails for the built-in look. Fill, sand, and finish — paint or stain (edge-band first if staining).