What's inside
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A small campaign-style chest is a useful first furniture project: a box with a hinged lid, simple joinery and brass-colored corner guards that protect the edges. This version measures about 18 inches wide, 10 inches deep and 10 inches tall, excluding the guards. It works as a keepsake box or desktop organizer, but it is too small for heavy storage. The main challenge is keeping the box square so the lid and hardware line up.
Contents
Materials and tools
Use 1/2-inch plywood for the case and 1/4-inch plywood for the bottom. Baltic birch plywood has consistent thickness and clean edges; ordinary cabinet-grade plywood costs less and is fine if its plies are intact and the faces are reasonably flat. Avoid construction plywood with voids at the edges, which can show through the finish or weaken a glued corner.
You’ll also need wood glue, 1-inch brads or screws, sandpaper, finish, two small hinges, a catch, and four brass or brass-finish corner guards. Search for small chest corner guards and check the dimensions before buying: guards intended for thick trunks may not fit a 1/2-inch case. For the hinges, small brass box hinges are a practical choice; choose a pair with screws short enough not to break through the lid.
Useful tools are a saw with a fine-tooth blade, a square, clamps, drill and bits, and a countersink. A table saw makes repeatable cuts, but a circular saw guided by a straightedge works. If you don’t own either, a hardware store can often cut plywood panels to size.
Cut list and hardware choices
Cut the front and back to 18 by 9 inches, the sides to 9 by 9 inches, the bottom to 17 by 9 inches, and the lid to 18 by 10 inches. These dimensions assume the side panels fit between the front and back; the assembled case will be about 18 inches wide and 10 inches deep. Check actual plywood thickness and make a dry layout before cutting the bottom. If your saw wanders or the plywood is slightly undersized, trim the bottom to fit rather than forcing it into the box.
| Corner treatment | Cost and effort | Best use |
|---|---|---|
| Brass-finish plated guards | Usually cheaper; screw holes can be small | Decorative indoor chest with occasional handling |
| Solid brass guards | Costs more; can be polished or left to age | A project where the hardware will be handled often |
| Wood corner blocks | Low cost; require fitting and gluing | When metal hardware is unavailable or unwanted |
Plated guards are adequate for a keepsake box kept indoors. The finish may wear at exposed edges over time; solid brass is more durable, but it is not necessary for a decorative project.
Assemble the case
Sand the inside faces and edges of the panels before assembly. It is easier to reach the inside corners now than after the box is glued. Dry-fit the front, back and sides on a flat surface, then check both diagonals. If the diagonal measurements differ by more than 1/8 inch, adjust the layout before fastening.
Run a thin bead of glue along the mating edges. Join the sides between the front and back with clamps, then check the corners with a square. Add brads or screws to hold the joints while the glue dries. If using screws, drill pilot holes and keep them at least 3/8 inch from panel edges; plywood can split when a screw is driven too close. Wipe away glue squeeze-out with a damp cloth before it hardens.
Fit the bottom inside the case, flush with the lower edges. Glue and tack it in place, checking that it does not push the box out of square. A bottom that sits proud or bows will make the chest rock, so test it on a flat bench before the glue sets. Let the assembly dry according to the glue label, typically several hours before removing clamps.
Fit the lid and hardware
Center the lid on the case, aiming for an even overhang of about 1/2 inch at the front and sides. Mark the rear edge and install the hinges before applying finish, following the hinge maker’s recommended screw size. Drill pilot holes slightly smaller than the screw shank; a too-large pilot lets the hinge loosen, while no pilot can split the lid. Test the lid through its full movement. If it binds, check for a crooked case or a hinge leaf sitting above the surface.
Install the catch at the front only after the lid closes evenly. A magnetic catch is simple, while a small hook catch gives a more traditional look. Brass corner guards often have sharp edges and tiny screws. Place each guard over the corner, mark the holes, and drill pilot holes by hand. Don’t drive the screws hard with a power tool: small brass screws can snap, and overtightening can strip the wood. If a guard rocks, correct the fit with a small shim rather than bending it aggressively.
Sand and finish
Sand exposed plywood edges with 120-grit paper, then finish with 180 grit. Ease sharp corners lightly; sharp edges chip more readily and can make the guards sit unevenly. Apply a compatible finish before attaching the brass hardware, or mask the guards carefully. A wipe-on oil finish is easy to apply but offers less protection from spills than a film finish. For a chest that may hold damp items, use a durable varnish or water-based clear coat and let it cure fully before loading the box.
One common failure is installing the guards before checking the lid alignment: the metal can hide a small corner gap but won’t correct a twisted case. Another is using screws that are too long, which can poke through the lid or sides. Measure the panel thickness, hinge leaf and screw length together; leave at least 1/8 inch of wood between the screw tip and the opposite face.