Wall planter box

An acrylic box that holds the soil itself, with a pattern scored across both sides and the front. The pattern wraps around the corners. Hooks on the sides drop onto a hidden rail on the cabinet, so it lifts off to water at the sink.

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Units

Sheet material

Thickness, mmCalipers, a few spots. Use the average.

Kerf, mmWidth the beam removes. 0.1–0.2 on a P2.

Slot fit, mmFrom the fit coupon. Acrylic wants a sliding fit, not a press fit.

Start from

Pattern

Style

Box, inside dimensions

Width, mmAlong the cabinet side.

Floor depth, mmOut from the cabinet, at the bottom.

Back height, mm

Front height, mmLower than the back slopes the sides.

Side top edge

Front lean, degrees

Details

Reservoir depth0 leaves out the grate.

Tab length

Cabinet and sheet

Cabinet side thickness, mmLook inside the cabinet. Often 16 or 19.

Rail screw hole, mm4.5 clears a #8 shank.

Sheet width, mm

Sheet height, mm

Edge margin, mmKept clear around every sheet. Parts are centered inside it.

Test-strip width, mmOptional. Kept clear at the left of sheet 1 for test grids.

Test-strip height, mm

Cut files

Every path in the download carries its own color: red is cut, blue is fine score, green is deep score. There is no text and no grouping in the file. If XCS still imports the sheet as one group, right-click it and Ungroup once, then click each color layer to select it and assign its settings. If your importer flattens colors, use the per-layer files instead: each has the same size and two tiny corner marks in the waste margin, so importing all three at the same X and Y lines them up.

Parts

Build order

Cut the fit coupon first. Push an offcut of the same sheet into each slot. Pick the slot the offcut slides into with light finger pressure and no rattle, and enter its number as the slot fit. Acrylic cracks if you press-fit it; the cement makes the joint, not friction.
Cut the sheets with the masking on. The pattern is on the up-facing side, which becomes the outside of the box.
Dry-fit, gently. Stand the front on the floor so its bottom tabs drop into the floor's notches. Slide the left side on, pattern down, then the right side. Push the back wall onto the side and floor tabs. Never force a joint; if one binds, sand the tab, don't hammer it.
Cement it. Thin acrylic cement along every inside seam and every tab; it wicks into the small clearance. Run a bead of clear silicone along the inside of the front-to-floor seam, where the lean leaves a thin wedge. Cure overnight, then fill it with water in the sink for an hour.
Drive the screws into the cabinet side at the keyhole spacing, level. Leave each head standing off the surface by about one sheet thickness; an offcut makes a good gauge. The bottom of the box rests on the cabinet, so it hangs with a tilt of about one degree, which you won't see. Put a dab of silicone in each pilot hole first.
Hang it: keyholes over the heads, then let it drop. Lifting it 10 mm frees it again. Tap Lift off in the preview to see the motion.
Lay landscape fabric on the grate, add soil, and water until you see water in the reservoir. To water or drain, lift the box off and take it to the sink.