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A deep, fixed-shelf plywood base module — one part of a mix-and-match desk or storage system, meant to sit under a shared desktop.
| Part | Qty | T × W × L | Material | ✓ |
|---|---|---|---|---|
| Sides | 2 | 3/4" × 15 3/4" × 29 1/4" | Plywood | ☐ |
| Shelves | 2 | 3/4" × 15 3/4" × 39 1/2" | Plywood | ☐ |
| Bottom footer | 2 | 3/4" × 3 1/2" × 39 1/2" | Pine | ☐ |
| Top supports | 2 | 3/4" × 1 1/2" × 39 1/2" | Pine | ☐ |
| Item | Qty | ✓ |
|---|---|---|
| Plywood, 3/4", half sheet Ripped into 15-3/4" wide strips at the store — about 12 ft total needed. | 1 each | ☐ |
| Pine, 1x2, 8 ft | 1 each | ☐ |
| Pine, 1x4, 8 ft | 1 each | ☐ |
| Pocket hole screws, 1-1/4" | 1 box | ☐ |
| Brad nails, 1-1/4" | 1 box | ☐ |
| Wood glue | 2 oz | ☐ |
Overall cost: $$. Lumber varies by region, species, and season, so we give a band rather than a figure.
Tools: Drill / Driver, Pocket Hole Jig. Materials: Pine, 1x4, 8 ft
Attach the 1x4 footer boards to the bottom of the sides with pocket holes, all set on the 3/4" jig setting with 1-1/4" pocket hole screws.
Tools: Brad Nailer, Drill / Driver. Materials: Plywood, 3/4", half sheet
Attach the shelves with pocket holes as fixed shelves — fixed rather than adjustable is what keeps this base rigid enough to carry a desktop's load. Also attach the middle shelf to the footer boards with 1-1/4" finish nails and glue for extra reinforcement.
Tools: Drill / Driver. Materials: Pine, 1x2, 8 ft
Attach the 1x2 top supports with pocket holes on top — the desktop will hide them once installed. Attach the desktop (minimum 16" wide x 41" long) from underneath into these 1x2s.
A back panel from 1/4" plywood, attached to the center shelf, adds support if this base will carry real weight regularly.