Plywood Toy Box Plans: One-Sheet Cut List
A sturdy 36"-long toy box with a lift-up lid, all from one 4×8 sheet of 3/4" plywood with room to spare. The joinery is butt joints with glue and screws, and the box is sized so the bottom drops inside the four walls.
- Finished size
- 36-1/2" L × 18-1/2" D × 18-3/4" H (lid closed)
- 3/4" plywood, 4×8 ft
- 1 sheet · 68% yield
Assumptions behind every number
- 3/4" plywood measures 23/32", which is typical for US sheet goods. Parts that fit between two others subtract the actual thickness. Measure your sheet; if it differs, edit the sizes in the optimizer.
- Every layout uses a 1/8" saw kerf on every cut, run through the same optimizer as the app.
Cut list
3/4" plywood, 4×8 ft
| Part | Qty | Width × Length | How it's sized |
|---|---|---|---|
| Front / back | 2 | 18" × 36"(grain locked) | full length |
| End | 2 | 16 9/16" × 18" | 18 − 1-7/16 wide |
| Bottom | 1 | 16 9/16" × 34 9/16" | (36 − 1-7/16) × (18 − 1-7/16) |
| Lid | 1 | 18 1/2" × 36 1/2"(grain locked) | +1/4 overhang each side |
Width × length is in inches, with length along the face grain. Parts marked "grain locked" are kept with the grain running their length in the layout.
Sheet and board layouts
This is the optimizer's output for exactly this list: 1 sheet of 3/4" plywood, 4×8 ft.
3/4" plywood, 4×8 ft: 1 sheet, 68% yield
Materials list
- 1 sheet of 3/4" plywood, 4×8 ft
- A 36" piano hinge or two 3" butt hinges
- One safety lid support (a "soft-down" or torque lid stay)
- #8 × 1-5/8" screws, about 24, plus wood glue
- Optional: two rope or cut-out handles on the ends
How it goes together
The front and back run the full 36". The ends fit between them at 18" − 1-7/16" = 16-9/16". The bottom sits inside all four walls at 36" − 1-7/16" = 34-9/16" by 16-9/16", screwed through the walls.
The lid is 36-1/2" × 18-1/2", so it overhangs 1/4" on every side for easy lifting.
Use a lid support rated for the lid weight that holds it open at any angle (often sold as a "soft-down" or "safety" lid stay). Hinges alone let a lid slam on small fingers. Drill a few 1" ventilation holes in the back, or leave a gap under the lid with bumpers.
Build order
- Cut the front, back, ends, bottom and lid.
- Glue and screw the ends between the front and back, then fit the bottom inside.
- Round over all edges with a 1/4" roundover bit or sandpaper. Kids find the corners.
- Fit a piano hinge or two butt hinges, plus the safety lid support.
FAQ
Can I make a toy box from one sheet of plywood?
Yes. This 36" box with its lid uses well under one 4×8 sheet of 3/4" plywood, and the layout above shows the leftover. That is enough for a second, smaller box or a shelf.
Is a toy box lid dangerous?
A free-falling lid is. Use a lid support that holds the lid open at any position, and consider leaving a ventilation gap. In the US, the CPSC has long warned about toy chest lids. Check current guidance before you build.
Why do the sizes subtract 1-7/16" instead of 1-1/2"?
Plywood sold as 3/4" actually measures 23/32" (about 0.72"). Two sides are 1-7/16" thick, not 1-1/2", so every part that fits between two sides is cut 1-7/16" shorter than the outside width. Measure your own sheet with calipers before cutting: if it is a true 3/4", subtract 1-1/2" instead and re-run the list in the optimizer.
What saw kerf does the layout assume?
A 1/8" kerf on every cut, which is a standard full-kerf table saw or track saw blade. With a thin-kerf blade the parts still fit; you just get slightly bigger offcuts.
Change a size, add a part or use up offcuts. The optimizer re-nests it in seconds.
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