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A closet tower is the backbone of a built-in closet: a tall plywood cabinet of shelves that anchors a wall of hanging rods and cubbies. This one is a straightforward 3/4" plywood box, but three finish details are what make it look like millwork instead of a shop shelf.
First, adjustable shelves on pins — flexible, but they come with a catch: you have to trim each shelf down (about 1/4" in width and depth here) to clear the edge banding and the pin spacing, or they won't drop in. Second, edge banding on the exposed plywood edges, ironed on and trimmed flush. Third, a baseboard base that matches the closet's existing trim, mitered around the bottom so the tower grows out of the wall rather than sitting on it.
One structural note that's easy to skip: if your shelves are all adjustable, you need the 1/4" plywood back. With no fixed shelves tying the sides together, the box will splay in the middle under load — the back is what holds it square.
| Item | Qty |
|---|---|
| 3/4" plywoodCut into three 15-3/4" wide x 8-ft strips. More if you want additional shelving beyond the tower. | 1 sheet |
| 1/4" plywoodBack — needed if shelves are adjustable, to keep the tower from splaying. | 1 sheet |
| 1x2, 8 ftFace frame. | 2 each |
| 1x4, 2 ftHeader. | 1 each |
| 2x2, 8 ftOptional base frame. | 1 each |
| Base mouldingMatch the closet's existing baseboard. | 6 linear ft |
| 3/4" x 3/4" inside corner mouldingOptional header trim. | 4 linear ft |
| Plywood edge banding | 1 roll |
| Pocket hole screws, 1-1/4" | 1 box |
| Brad nails, 1-1/4" and 3/4" | 1 box |
| Shelf pins | 16 each |
| Wood glue | 6 oz |
| Finish / paint | 1 kit |
Overall cost: $$$. Lumber prices vary by region, species, and season, so we give a band rather than a figure we would only be pretending to know.
| Part | Qty | T × W × L |
|---|---|---|
| Sides3/4" plywood | 2 | 3/4" × 15 3/4" × 72" |
| Shelves, top and bottom3/4" plywoodTrim adjustable shelves down ~1/4" in width and depth for banding and pin clearance. | 6 | 3/4" × 15 3/4" × 22 1/2" |
| Back1/4" plywood | 1 | 1/4" × 24" × 72" |
| Face frame top1x2 | 1 | 3/4" × 1 1/2" × 24" |
| Face frame stiles1x2 | 2 | 3/4" × 1 1/2" × 71 1/4" |
| Face frame bottom1x2 | 1 | 3/4" × 1 1/2" × 21" |
| Header1x4 | 1 | 3/4" × 3 1/2" × 21" |
| Base frame front/back2x2Optional; height matches baseboard. | 2 | 1 1/2" × 1 1/2" × 21" |
Buy 9 boards at 8 ft.
1 board
3 boards
1 board
3 boards
1 board
Assumes 8 ft stock, a 1/8" saw kerf, and buying each part at its own width. Change the board size or kerf on the full board plan →
Build the basic box with 3/4" pocket holes and 1-1/4" pocket screws, placing the pockets on the outside top and bottom where they'll be hidden. Keep it square.
Use a shelf-pin jig to drill the adjustable-shelf holes. Iron edge banding onto the exposed plywood edges of the shelves and sides. Then trim each adjustable shelf down (~1/4" overall here) so it clears the pins and banding — measure your own pins, they vary.
If you're running all adjustable shelves, add the 1/4" plywood back — without fixed shelves tying the sides, the tower will bow out in the middle. Attach with glue and 3/4" brad nails.
Build the face frame first with pocket holes, then attach the whole assembly to the front of the tower with glue and finish nails. It dresses the front and hides the plywood edges.
Trim out the base in baseboard matching the closet's existing trim, mitering the corners and attaching to the 2x2 base with a finish nailer and glue. Add the optional 3/4" x 3/4" corner moulding to the top header. Then fill, sand, and finish.
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