Build a simple keepsake box with a lift-off lid

Choose a lid you can fit gradually

A lift-off lid is a good introduction to box making because its fit can be adjusted without installing hinges. The design below uses a flat lid with a smaller plywood locating panel glued underneath. The panel enters the box opening and prevents the lid from sliding sideways.

Use measured 9 mm plywood for the walls. With the listed dimensions, the box has a 220 × 150 mm outside footprint and a 202 × 132 mm interior opening. The base sits underneath the walls rather than in a groove.

• Front and back: two pieces, 220 × 70 × 9 mm.
• Ends: two pieces, 132 × 70 × 9 mm.
• Base: one 220 × 150 mm piece of 6 mm plywood.
• Lid: one 226 × 156 mm piece of 9 mm plywood.
• Locating panel: begin at 200 × 130 mm in 6 mm plywood, then fit.

Build the shell before sizing the lid insert

Dry-fit the four walls on the base and check the corners. Sand the interior faces now, leaving glue areas clean. Assemble using a suitable wood adhesive and padded clamps. Confirm that the opening is square and the base remains flat.

Let the shell cure before taking the final opening measurements. Even careful assembly can introduce a small difference between the two ends. Measure the opening in several places and size the locating panel to the smallest dimensions, with clearance on every side. A friction-tight fit can become troublesome after finishing.

Center the locating panel accurately

The lid overhangs the box by 3 mm on all sides. At the example dimensions, centering the 200 × 130 mm panel under the 226 × 156 mm lid gives a 13 mm margin all around. Draw that margin on the underside and verify it with a ruler.

Glue the panel in place while keeping it flat. Remove squeeze-out from its edges, since a hardened bead can spoil the fit. Once cured, lower the lid vertically into the opening. If it binds, identify the contact point with pencil marks and remove a small amount from that area.

Finish a box that remains pleasant to use

Lightly ease the lid edges and corners. Keep the locating panel’s lower edge smooth so it finds the opening easily. A finish adds thickness, so test the fit after each appropriate curing stage and avoid building a thick film on the contact surfaces.

Support small parts while sanding and use a clamping arrangement for any drilling. This is a storage box for lightweight keepsakes, not a child-safety container or a secure lockbox. Avoid placing damp objects inside. If it will hold fabric or paper, allow the finish to cure completely and lose any residual odor before loading it.