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Most garden boxes are screwed together and stay wherever they were built until they rot. This reader-contributed design (Janet Fox's, via the source) does two things differently, and both are worth stealing. First, it BOLTS together: hex bolts thread into E-Z LOK-style threaded inserts set in the 4x4 legs, so the box disassembles flat every fall and re-bolts every spring — no wallowed-out screw holes, ever, because machine threads in metal don't wear like wood does. Second, the floor is 1/4" HARDWARE CLOTH stapled across the bottom, which drains perfectly, never rots, and locks gophers and voles out of the root zone.
The mesh spec matters: 1/4" holes, specifically. The source learned the obvious the useful way — 1/2" mesh lets the soil itself trickle through. And the width discipline matters too: keep the box 24" wide or under so a standard 24" roll of hardware cloth spans it in one piece; a 25-foot roll floors six boxes.
The fussy step is drilling for the inserts, and the source's marking method is the honest path: drill the bolt holes through the 1x8s first, pin-nail the assembly together temporarily, and mark the legs THROUGH the holes with a center punch. Then drill the legs straight and to depth (a drill press is best; a careful hand drill works) and set the inserts. Number the boards and legs as you fit them — bolted joints want to go back where they came from.
Six 1x3 slats under the mesh carry the soil load to the frame. Fir posts are the budget call the source endorses: 'nearly as long' lasting as cedar for less.
| Item | Qty |
|---|---|
| 4x4 post, 10 ft, fir or cedarAll four legs. Fir is cheaper and 'lasts nearly as long' — the source's words. | 1 each |
| Cedar 1x8, 12 ftSides and ends — exactly enough; mind the kerf note in the cut list. | 1 each |
| Cedar 1x3, 12 ftThe six floor slats. | 1 each |
| Hardware cloth, 1/4" mesh, 24" x 50"1/4" holes SPECIFICALLY — 1/2" mesh lets the dirt through. A 25-ft roll floors six boxes. | 1 each |
| Hex bolts, 1/4-20 x 2", with washers | 16 each |
| Threaded inserts, 1/4-20E-Z LOK style. These are the knock-down system — machine threads that never strip out. | 16 each |
| Exterior screws, 1-1/2", self-tapping, star driveThe floor slats. | 12 each |
| Staples | 50 each |
Overall cost: $$. Lumber prices vary by region, species, and season, so we give a band rather than a figure we would only be pretending to know.
| Part | Qty | T × W × L |
|---|---|---|
| Legs4x4 | 4 | 3 1/2" × 3 1/2" × 30" |
| SidesCedar 1x8The shopping list is EXACT — if kerf forces 47-7/8", fine, but all matching cuts must match. | 2 | 3/4" × 7 1/4" × 48" |
| EndsCedar 1x824" keeps the box within one width of hardware cloth. | 2 | 3/4" × 7 1/4" × 24" |
| Floor slatsCedar 1x3 | 6 | 3/4" × 2 1/2" × 24" |
Buy 6 boards at 8 ft.
2 boards
2 boards
2 boards
Assumes 8 ft stock, a 1/8" saw kerf, and buying each part at its own width. Change the board size or kerf on the full board plan →
Drill the bolt holes through the 1x8 sides and ends first — two or three per end, your call. Then dry-assemble the box around the legs with a pin nail per side holding position, NUMBER every board-to-leg pairing with arrows marking 'up,' and hammer a center punch through each hole to mark the legs.
This mark-through-the-hole sequence is the whole trick: the leg holes end up exactly behind the board holes because they were born from them.
Pull the dry assembly apart and drill the leg holes STRAIGHT and to the depth your bolts need — a drill press if you have one, a careful eye and tape-flag depth marker if you don't. Thread the sixteen inserts into the legs.
Depth matters: the source made sure the bolts could pull the sides fully tight against the legs. Test one joint — bolt, washer, board, snug — before setting all sixteen inserts.
Bolt sides and ends to the legs following your numbering — washers under every head, snugged tight. Enjoy the novel sensation of furniture-grade joinery on a garden box, and remember this comes apart in November on purpose.
Flip the box upside down, stretch the 24" x 50" hardware cloth across the bottom, and staple generously — wrapping the mesh around at the legs per the source's close-ups, since corners are where burrowers audition.
Space the six 1x3 slats evenly across the mesh and screw each end down with two screws — the slats carry the soil's weight; the mesh just holds the soil and repels the wildlife.
Flip upright, lay coconut coir, newspaper, or compost over the mesh to keep fine soil put while roots establish, and fill.
At 30" tall this bed gardens at standing height — no kneeling, no gophers, and no spring rebuild, because the bolts you snug next April are the same ones you loosened in November.
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