What's inside
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A wooden blanket chest is a useful first cabinet project: it has a simple box shape, forgiving dimensions, and plenty of room to practice straight cuts, screws, glue, and sanding. This beginner plan makes a chest about 36 inches wide, 18 inches deep, and 20 inches high, with ventilation gaps beneath the lid and along the back. Those gaps reduce trapped moisture and help blankets stay fresh, but they do not make the chest suitable for storing damp textiles.
Contents
Plan overview and material choices
The easiest construction is a plywood box faced with solid-wood trim. Three-quarter-inch plywood stays flatter than wide solid boards and costs less than building the entire chest from clear hardwood. Use cabinet-grade plywood if the chest will be visible in a bedroom or living room. Sanded pine plywood is cheaper and acceptable for a painted chest, although its face layers may contain patches.
| Material | Best use | Trade-off |
|---|---|---|
| 3/4-inch plywood | Lowest-risk beginner build | Edges need trim or edge banding |
| 3/4-inch pine boards | Painted or rustic chest | Can cup, twist, and open joints as humidity changes |
| Hardwood panels | Furniture-quality clear finish | More expensive and requires careful seasonal movement planning |
For this size, buy one 4-by-8-foot sheet of 3/4-inch plywood, a 1-by-3-inch board for trim, and a 1/4-inch plywood panel for the bottom. Add wood glue, 1 1/4-inch screws, 1-inch screws, sandpaper, and a finish. A basic set of woodworking bar clamps is more useful than buying a large specialty jig.
Beginner cut list
Cut the following from 3/4-inch plywood:
- Two sides: 18 by 19 1/4 inches
- Front and back: 34 1/2 by 19 1/4 inches
- Bottom: 34 1/2 by 16 1/2 inches from 1/4-inch plywood
- Lid: 36 by 19 1/2 inches from 3/4-inch plywood
The front and back fit between the sides, producing an outside width of about 36 inches. The bottom fits inside the box and sits 1 inch above the lower edges. This inset gives the chest a shadow line and leaves room for feet or a base rail. If your plywood measures slightly under 3/4 inch, keep the same overall layout but measure the bottom opening after dry-assembling the four walls. Actual sheet thickness varies.
How to add useful ventilation gaps
Do not drill a random collection of tiny holes and assume the chest is ventilated. A continuous gap is easier to make and clean. Install the lid with a 1/4-inch gap along the back edge and two 1/8-inch gaps under the front and side edges. The lid should overhang the front and sides by about 3/4 inch, so these gaps are hidden from normal view.
For extra airflow, cut three horizontal slots in the back panel before assembly. Make each slot 1/4 inch high and 8 inches long, with at least 2 inches between slots and 3 inches of solid material at each end. Cover the inside of each slot with fine metal mesh if insects are a concern. A slot cutting setup requires more accuracy, so beginners can skip the back slots and rely on the lid gaps.
Ventilation will not prevent mildew if blankets go in damp. Dry and air bedding completely before storage, and leave the lid open for an hour after washing or airing the contents. Avoid storing the chest directly against a cold exterior wall.
Step-by-step assembly
1. Break down and label the panels. Use a circular saw with a straightedge or a table saw. Mark the best-looking face of every panel. Check each cut with a tape measure and square; a 1/8-inch error repeated across several parts can leave the box visibly out of square.
2. Prepare the ventilation. If using back slots, mark them with a straightedge and drill a hole at each end before cutting between the holes with a jigsaw. Sand the slot edges. A wood-cutting oscillating tool blade can also make short openings neatly, but it is not essential.
3. Assemble the box. Clamp the front between the sides, spread glue on the mating edges, and drive 1 1/4-inch screws through the sides into the front. Predrill every hole near a plywood edge. Add the back panel, then measure diagonally from corner to corner. The two diagonal measurements should be within 1/8 inch. Adjust the clamps before the glue sets.
4. Install the bottom. Apply glue to the lower inside edges, position the 1/4-inch panel 1 inch up from the bottom, and secure it with 1-inch screws or brads. Do not rely on glue alone; blankets can make a surprisingly heavy load. Add narrow interior cleats under the bottom if the chest will hold quilts or books as well as blankets.
5. Add trim and a base. Cover exposed plywood edges with 1-by-3-inch trim, attached with glue and brads. A simple base made from two front-to-back rails and one front rail lifts the chest 2 inches off the floor. This helps airflow underneath and reduces damage from damp floors. Sand the trim flush after the glue dries.
6. Fit the lid. Ease the lid edges with a small round-over bit or sandpaper. Position two or three hinges along the back, leaving the planned ventilation gap. Install a slow-close toy box lid support rather than ordinary friction hinges. A heavy lid can slam on fingers, and a lid support also keeps the hinge screws from being overloaded.
Safety, finish, and seasonal use
Do not use this chest where a small child could climb inside. A ventilation gap is not a substitute for a child-safe lid design. For a family room, consider removing the lid entirely or using a lightweight hinged top with a reliable support. Round all exposed corners to at least a small 1/8-inch radius.
For a painted chest, fill screw holes, sand to 180 grit, and apply primer followed by two thin coats of interior enamel. For a natural finish, use a hardwax oil or water-based polyurethane; a water-based clear wood finish dries faster and adds less amber color than oil-based polyurethane. Finish the inside as well as the outside, especially if the chest will see humid summer conditions.
Build and finish the chest in a dry, temperature-stable space when possible. In winter, cold plywood brought into a heated shop can collect condensation, so let it acclimate for several days before cutting. In summer, leave slightly more clearance around a solid-wood lid because wood expands across its grain. With plywood construction, the main seasonal risk is movement in the trim, not a dramatically changing box size.