What's inside
As an Amazon Associate I earn from qualifying purchases. This post may contain affiliate links at no extra cost to you.
A stackable scrap bin is more useful than a single large box because it lets you sort short pieces by size, species, or future use. This version has angled sides, so it is easy to reach into and less likely to trap material in square corners. The bins stack securely without needing a complicated interlocking system.
The design uses 1/2-inch plywood for the sides and bottom, plus narrow hardwood cleats that act as feet and stacking rails. Each bin measures approximately 18 inches wide, 24 inches deep, and 12 inches high at the back. The front is 8 inches high, creating a sloped opening. Make two or three while your tools are set up; the cuts are repetitive, and matching bins stack more reliably.
Contents
Materials and tools
For one bin, gather a 2-by-4-foot sheet of 1/2-inch plywood, about 5 linear feet of 1-by-2 hardwood or straight scrap, wood glue, and 1-1/4-inch screws. A sheet of 3/4-inch plywood makes a stiffer, heavier bin, but it reduces the interior space and costs more. For ordinary offcuts under about 24 inches long, 1/2-inch plywood is adequate.
You will also need a table saw or circular saw with a guide, a drill/driver, a countersink bit, a square, a tape measure, clamps, and 120-grit sandpaper. A circular saw guide rail is helpful if you are breaking down full sheets without a table saw, but a straight plywood guide works nearly as well.
| Material choice | Advantages | Drawbacks | Best use |
|---|---|---|---|
| 1/2-inch plywood | Light, inexpensive, easy to cut | Edges can split; flexes under heavy loads | General shop scraps and light offcuts |
| 3/4-inch plywood | Stiffer and more durable | Heavier, more expensive, smaller interior | Hardwood scraps or frequent moving |
| Solid 1-by boards | Good-looking and impact-resistant | Can warp; requires more joint preparation | A finished shop or matching existing cabinets |
Cut list and layout
Cut the following parts from 1/2-inch plywood:
- Bottom: 17 by 23 inches
- Back: 18 by 12 inches
- Front: 18 by 8 inches
- Sides: two pieces, 24 inches deep, 12 inches high at the back, and 8 inches high at the front
On each side piece, mark the 12-inch back height and 8-inch front height. Connect those marks with a straight line and cut the slope. The sloped edge should run from the top of the 12-inch rear edge to the top of the 8-inch front edge. Do not assume both sides match because a small difference will make the bin rack when stacked. Clamp the two side blanks together and cut them at the same time if your saw can handle the pair safely.
Use the bottom dimensions as the controlling measurement. Dry-fit the parts around it before adding glue. Depending on your saw blade and plywood thickness, the finished outside dimensions may vary by 1/8 inch. That is normal; consistency between bins matters more than hitting an exact outside measurement.
Build the bin
Sand the cut edges lightly, especially the sloped side edges and the top front edge. Plywood splinters are a real problem in a bin that gets used with one hand. If the plywood has voids on the edges, fill them with wood filler or cover the edges with thin hardwood strips.
Start by attaching the back to the bottom. Apply a thin glue line to the bottom edge of the back, align it flush with the rear edge of the bottom, and drive three or four screws from underneath. Predrill every hole near the plywood edge. Without pilot holes, 1/2-inch plywood commonly splits or blows out.
Attach the sides next. Set each side flush with the bottom and back, then use four screws through the side into the bottom and two screws into the back. Keep the sloped edges facing outward and the higher ends at the rear. Check the opening with a square before the glue sets. Finally, attach the shorter front panel between the sides, flush with their front edges.
A 12-inch woodworking bar clamp makes it easier to hold the front and sides together, but ordinary spring clamps are fine for this small assembly. Wipe away squeezed-out glue before it dries. Leave the bin clamped for at least 30 minutes and avoid loading it for several hours.
Add the stacking feet and rails
Cut four hardwood cleats approximately 3/4 inch square and 16 inches long. These are the stacking rails. Attach two cleats under the bottom, running front to back and positioned about 1-1/2 inches in from each side. They should stop at least 1 inch short of the front and back edges. This prevents the lower bin’s rails from catching on the upper bin’s side walls.
Attach two matching cleats to the top edges of the side walls, directly above the lower rails. These upper cleats create a shallow socket when another bin is placed on top. Use glue and screws from inside the bin, with the screw heads countersunk below the plywood surface. If your bins will hold heavy hardwood, use 1-inch-square cleats instead of 3/4-inch stock.
Test the stack before finishing. Set one empty bin on another, then push it gently from the front and side. It should resist sliding but still lift off without force. If it rocks, one cleat is too high or a side is out of square. Plane or sand the high spot now; correcting it after several bins are built is frustrating.
Finish and use
Round the exposed corners with sandpaper and sand the interior to 120 grit. You do not need a furniture-grade finish. Two coats of water-based polyurethane will reduce dirt absorption and make glue drips easier to remove. For a rough utility bin, one coat of water-based polyurethane on the inside is enough. Paint is also practical if you want quick visual labels by material type.
Do not use these bins for long, heavy boards unless the bottom is reinforced. A concentrated load can bow 1/2-inch plywood, loosen the screws, or split the lower cleats. For that use, add a second plywood layer under the bottom or use 3/4-inch material from the start.
Label each bin by a rule you will actually follow: “hardwood under 24 inches,” “thin strips,” or “burn pile.” Keep scraps sorted by a useful decision rather than by species alone. The angled front makes the contents visible, while the stackable footprint keeps valuable floor space available for larger projects.