240 Engraved Magnetic Acrylic Signs Across 6 SKUs for a UK Beauty Brand

The Challenge

The brief contained a quiet contradiction. The brand wanted deep engraving — lettering with real shadow, the kind that reads as carved rather than printed — and it wanted the signs to hold to walls magnetically, with the magnets invisible from the front. Both features remove material from the same 5 mm sheet. Engrave too deep where a magnet pocket sits behind, and the panel thins to a crack waiting for its first handling; keep the magnets weak to shrink their pockets, and a sign lets go over a shop floor.

Around that engineering tension sat two commercial constraints:

• Six designs, small quantities each. The campaign system needed 6 SKUs — different sizes and messages — at 30 to 60 units apiece. Suppliers quoting per-design setup fees made the program uneconomical before it started.
• Nobody drills a wall. The brand's counters sit inside department stores and shopping centers where landlords forbid fixings. Every previous signage rotation had meant adhesive strips that failed or a store-approval process that took longer than the campaign.

Our Approach

We quoted the program as one 240-unit order rather than six small ones, and put the DFM effort into a magnet layout rule that made the engraving-versus-magnet trade-off systematic instead of per-design guesswork. The mounting arithmetic behind this build follows the same logic as our magnet mounting spec chart for acrylic.

Magnet pull vs engraving depth: the 3 mm web rule

The numbers are small and unforgiving. The panel is 5 mm cast acrylic. Display-grade engraving that reads as carved needs 0.6–0.8 mm of depth on the front face. Each rear magnet pocket — sized for a 10 × 2 mm neodymium disc plus adhesive bed — takes 2 mm from the back. Let a pocket sit directly behind an engraved stroke and the remaining web drops under 2.5 mm; acrylic that thin over a hard inclusion cracks during installation, if not in the carton.

So the rule we drew into every SKU: a minimum 3 mm of continuous material everywhere, which in practice means magnet pockets never sit behind engraving. We overlaid each SKU's artwork on the standard four-corner magnet grid, and on two of the six designs the lettering's descenders crossed pocket positions — those pockets moved off-grid, and the wall-plate positions moved with them on the matching installation template. Four magnets per sign proved the right count: a 300 × 200 mm sign weighs about 0.36 kg, and four discs hold it with a comfortable shear margin. More magnets would mean more pockets to place, more plates to align on the wall, and no meaningful gain.

Six SKUs, one production run

Small-batch multi-SKU work is a scheduling problem more than a cutting problem. We nested all six SKUs across shared sheets, which kept material efficiency close to a single-design run, and grouped the engraving so every SKU ran at the same depth setting on the same day — one calibration, one operator, six designs. Because the signs are CNC-cut and engraved rather than molded, the program carried zero tooling fees; each design's cost is its cutting program, which is also why adding SKUs later costs so little.

Damage-free mounting that survives rotation

The wall side of the system is a 30 mm steel disc on 3M VHB tape — no drill, no landlord conversation. The discs stay on the wall permanently; the signs snap on and off. That split is what makes the system pay for itself on rotation: when the brand changes campaigns, the retail team carries new signs into 14 counters and swaps them in seconds, no tools, no residue, no re-alignment. Each SKU shipped with a paper installation template locating its disc positions, including the two off-grid designs.

The Results

The full 240-unit order cleared pre-shipment inspection at a 0.4% defect rate and shipped 15 production days after sample sign-off, packed per-SKU with wall plates and templates in each carton.

The month-2 expansion is the signal worth reading. Two new SKUs joined the program on the same magnet grid, panel spec, and hardware — which means the engineering survived contact with 14 real walls and a live campaign rotation before the brand doubled down. For a multi-SKU program, the second order is where the layout rules either pay off or get redesigned; these paid off.

What This Means for Your Project

If your signage combines two material-removing features — engraving and magnet pockets, engraving and standoff counterbores, pockets and deep bevels — ask your supplier where the thinnest point of the panel is and what the number is. A supplier who has not calculated it is discovering it in your shipment. The web rule costs nothing at layout time and is invisible in the finished sign; its absence shows up as cracked corners three weeks after installation.

And if your brand rotates signage seasonally, split the system into a permanent wall side and a swappable sign side from day one. The plates-plus-magnets architecture means each new campaign is just new panels — the installation labor, landlord approvals, and alignment work were paid once, on the first rollout.

Common Questions

Does engraving weaken a magnetic acrylic sign?

Only if the material removal stacks. Engraving takes 0.6–0.8 mm off the front face and each rear magnet pocket takes another 2 mm — on a 5 mm panel, letting those two zones overlap leaves under 2.5 mm of material at the thinnest point, which is where signs crack during handling. Our layout rule keeps a minimum 3 mm web everywhere: magnet pockets shift so they never sit behind engraved strokes. On two of this program's six SKUs, that meant moving pockets off the standard grid to clear descenders in the lettering.

What is the minimum order for a multi-SKU engraved sign program?

Our standard MOQ is 50 pieces per design — and for multi-SKU programs like this one that share material and process, the 50 can spread across designs. This program ran 240 units split across 6 SKUs in batches of 30 to 60 each, nested together on shared sheets to keep material efficiency close to a single-SKU run. Because the signs are CNC-cut and engraved rather than molded, there are zero tooling fees, so adding a SKU costs a cutting program and a sample loop, not a mold.

Will magnetic wall mounting damage the paint?

Not with the wall-plate approach. The magnets pull against 30 mm steel discs fixed to the wall with 3M VHB tape — no drilling, and removal is a peel that a heat gun and patience handle without lifting paint. The sign itself touches the wall only at the magnet contact points, and swapping a sign takes seconds because the plates stay put between campaigns. This client swaps signs across 14 counters every six weeks on the same plates.