What's inside
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A small tambour cabinet is a useful intermediate woodworking project: compact enough for a weekend shop, but demanding enough to teach accurate casework, sliding hardware, and careful finishing. The finished cabinet works well as a bedside cupboard, coffee station, entryway organizer, or wall cabinet. A typical size is 24 inches wide, 12 inches deep, and 30 inches tall.
The tambour door rolls into a pocket instead of swinging outward. That saves floor space, but the door requires more planning than a pair of hinges. Allow about 12 to 16 hours for the build, excluding finish drying time. Work in a dry, stable season if possible; a swollen tambour is much harder to fix after assembly.
Contents
Plan the Cabinet and Choose Materials
Use 3/4-inch plywood for the cabinet sides, top, bottom, and shelves. Baltic birch plywood is a good choice because its edges are consistent and it has fewer voids. Furniture-grade hardwood plywood also works. Solid wood is attractive for the face frame and trim, but wide solid panels can move across their grain and cause joints to crack.
For the tambour, use straight-grained hardwood strips approximately 1/4 inch thick, 3/4 inch wide, and 22 to 24 inches long. The exact length depends on your cabinet opening. Plan for 1/16 inch of clearance at each side and about 1/8 inch of vertical clearance. Maple, cherry, and poplar are all workable. Avoid brittle or heavily figured stock for your first attempt.
| Material choice | Advantages | Trade-offs |
|---|---|---|
| Baltic birch plywood | Flat, clean edges, reliable screw holding | More expensive; exposed edges need treatment |
| Furniture-grade plywood | Good appearance and widely available | Core quality varies by supplier |
| Solid hardwood | Best for trim and visible edging | Moves with humidity and costs more |
| Poplar for tambour slats | Inexpensive and easy to machine | Dents easily and needs paint or careful staining |
You will also need glue, 120- and 180-grit sandpaper, a finish, and a method for making the tambour backing. A flexible canvas backing is forgiving and easy to repair. For cutting uniform slats, a table saw thin-strip jig is helpful, although a commercial slot-cutting setup is not essential.
Cut and Assemble the Cabinet Case
For a 24-by-30-inch cabinet, cut two sides at 30 by 12 inches, a top and bottom at 22 1/2 by 12 inches, and a back at 22 1/2 by 28 1/2 inches. These dimensions assume the top and bottom fit between the sides. Adjust the width if you want a thicker face frame or different door opening.
Before cutting all the parts, make a full-size sketch. Mark the tambour pocket, shelf position, and the direction in which the door will roll. A tambour needs a vertical pocket beside the opening, usually 2 1/2 to 3 inches wide. If the usable opening is 20 inches wide, the case may need to be roughly 23 inches wide to provide that pocket.
Cut a 1/4-inch-wide by 1/4-inch-deep groove near the back edges of the sides, top, and bottom for the plywood back. Dry-fit the case on a flat surface. Check that opposite diagonals match within 1/8 inch. Apply glue to the mating edges, clamp the box, and confirm square before the glue sets. Add brads or screws only where they will be hidden or plugged.
Install a fixed shelf with a stopped dado, screws from the sides, or adjustable shelf pins. A shelf that is 3/4 inch below the bottom of the tambour opening usually provides enough room for a useful compartment. Add a solid-wood front edge if the shelf will carry heavy items.
Make the Tambour Door
Cut enough slats to cover the opening plus the height of the roll-around path. For a 20-inch-wide by 22-inch-high opening, a door made from 3/4-inch slats needs about 27 to 30 slats, depending on the gap between them. Make two or three extra pieces for testing and replacement.
Mill every slat to the same thickness. Even a difference of 1/32 inch can make the door bind. Round the front edges lightly with sandpaper, but keep the back faces flat. Lay the slats face down on a straight surface and glue them to a strip of flexible canvas. Leave a gap of approximately 1/32 inch between slats. A simple spacer cut from scrap wood keeps the gaps consistent.
Do not flood the canvas with glue. Excess adhesive stiffens the joints and creates hard spots that catch in the track. Use a thin, even coat, then place a flat board and weights over the assembly while it dries. Afterward, trim the canvas flush and sand only the visible faces. If you prefer a cleaner interior, use a flexible tambour door backing rather than thick fabric; the cheaper canvas option is fine for a painted or casual cabinet.
Shape the Tracks and Test the Fit
The cabinet sides need a continuous track that guides the door down the front, across the top or bottom transition, and into the side pocket. The easiest method is to rout a 1/4-inch-wide groove in each side and add a curved hardwood guide at the transition. Make the curve at least a 2-inch radius; a tighter bend increases friction.
Another approach is to install commercial tambour tracks. They cost more but reduce the risk of mismatched curves. Search for tambour door track hardware only after measuring your door thickness and opening. Hardware advertised for a different slat thickness may not fit.
Test the unfinished door in the tracks before applying finish. It should move with one hand and no scraping. If it binds, look for a high slat, proud canvas, a narrow pocket, or tracks that are not parallel. Do not solve binding by sanding randomly; mark the exact contact point first. Leave at least 1/16 inch total side clearance after finishing.
Finish, Add Hardware, and Adjust
Sand the case to 180 grit. Seal plywood edges with a matching iron-on edge band, solid-wood edging, or a thin coat of sanding sealer. Apply finish to the tambour before final installation, including the slat edges, but keep heavy finish out of the track grooves. Water-based polyurethane dries quickly and keeps light wood pale; oil-based varnish gives more warmth but adds drying time.
For a painted cabinet, use a bonding primer on plywood edges and poplar. A water-based polyurethane wood finish is the cheaper, practical choice for a clear finish when the cabinet will see normal indoor use. Let each coat dry fully and sand lightly with 220 grit between coats.
Install a small pull or finger groove on the leading slat. Add stops inside the pocket so the door cannot disappear into the case. If the cabinet is tall or will hold heavy items, anchor it to the wall with a furniture anti-tip strap. Make the final adjustment after the cabinet has been indoors for several days; seasonal humidity can change the fit enough to require minor track or stop adjustments.