Choosing wood and acrylic for laser-cut maps

Reference guide. Read before a layered build so you buy the right thickness and the right number of sheets the first time.

The single biggest variable in how a layered map turns out is not the design, it is the material. A topo stack cut from 3 mm ply is twice as tall as the same stack in 1.5 mm. A depth chart cut from tinted acrylic needs no paint at all, while the same chart in birch needs a careful stain plan. This guide covers the choices that matter before you hit cut.

It pairs with the build guides for Topography, the Lake Depth Chart, and the Land and Sea Relief Map: the presets where material choice does the most work.

Open the Map Designer

On this page (4)

1. Thickness sets the stack height
2. Wood: pick by role
3. Acrylic: when color replaces paint
Laser Cutting & Engraving

What you need

Laser-grade plywood in 1.5 mm, 2 mm, and 3 mm; the workhorse for layered stacks
Acrylic sheets in a range of blues for water and depth bands
3M tape (300LSE for wood, 467/468 for acrylic) and/or wood glue
Stains and matte clear for tuning wood tones

1. Thickness sets the stack height

Stack height is layer count times sheet thickness, so thickness is the lever you pull when a design has many layers:

Few layers (3-6), e.g. a depth chart: 3 mm ply gives a satisfying chunky relief without getting unwieldy.
Many layers (10-16), e.g. a full topo: drop to 1.5-2 mm stock, or chipboard/matboard, or the stack climbs past 40-50 mm and looks like a brick.
Mixing thicknesses is fine and useful: a thick backplate for stability, thinner contour sheets above it.

Calipers resting on a stack of clear acrylic sheets of different thicknesses — Measure every sheet before you cut. A sheet sold as 3 mm can measure 2.8 or 3.2, and over ten layers that difference adds up to a few millimetres of stack height.

Edge view of a cut piece made from a black layer glued onto red acrylic — Seen from the side, each layer adds its full thickness. This piece is two layers: black on top, red acrylic underneath.

Edges of acrylic sample sheets in cream, pink, gold flake, glitter, white and blue, fanned out side by side — Sample sheets seen edge-on. Line up the sheets you plan to use and measure each one, because every extra tenth of a millimetre repeats on every layer.

Example for Materials for Laser Maps: 1. Thickness sets the stack height

2. Wood: pick by role

Shore plate / top face: your cleanest, best-faced sheet. Birch or maple takes engraving crisply for the place name and depth.
Backplate: this is the deep water or lowest ground; stain or paint it dark (the presets use charcoal #1f2937 or deep navy #0E4C66). Walnut works unstained.
Contour / band sheets: consistent, flat stock matters more than species here. Cheaper ply is fine for the hidden middle layers.
Plan your stain before assembly: it is far easier to stain band edges on loose sheets than to reach into a glued stack.

Round sign with a light wood frame and raised SCI-FI letters over a dark wood backing — Light wood for the face and letters, dark wood for the backing. The same split works on a map: a clean birch shore plate over a dark backplate.

Paper application tape being rolled onto a plywood sheet on the laser bed — Paper application tape on the face sheet catches smoke residue from engraving and cutting. Peel it after the job, before any stain or glue.

Thin light plywood sheets stored upright — Light plywood sheets in storage. For the hidden middle layers, flat and consistent sheets matter more than the species.

Example for Materials for Laser Maps: 2. Wood: pick by role

3. Acrylic: when color replaces paint

Cutting depth bands from successively darker blue acrylics lets the color itself read the depth: no painting, and a glossy, modern finish.
Clear acrylic for every layer makes a ghost terrain or a see-into-it basin.
Acrylic needs 467/468 transfer tape rather than wood glue for clean, squeeze-out-free bonds.
Acrylic slivers along steep shores are brittle: run small-polygon cleanup at export and handle thin bands gently.

The same cut shape in glitter, marbled, printed, neon and translucent blue acrylic, fanned out in one hand — One cut shape in many acrylics. The translucent blues on the right are the kind of graded set that can replace paint on depth bands. Glitter and printed sheets can need different settings from solid colours, so test each new sheet type.

Copper, silver and holographic teal glitter acrylic pieces held over a box of offcuts — Copper, silver and holographic teal glitter acrylic. The sparkle changes a lot with the light, so judge a sample where the finished piece will hang.

Square city map in clear acrylic held up against a white wall — An all-clear build. Streets and canals read from frosted laser marks and cut edges, with no colour at all.

Cat shapes cut from translucent red, pink, orange, yellow, green, blue and purple acrylic, overlapping — Translucent acrylic mixes where pieces overlap, so a stack of tinted layers shows its depth through colour alone.

Example for Materials for Laser Maps: 3. Acrylic: when color replaces paint

Choose your build method

Laser Cutting & Engraving

Buying the right quantity

Count the layers in the on-screen panel after you have deleted empty ones: that is your sheet count for a wood build (one per layer plus the backplate).
For acrylic depth builds, buy one sheet per band in your chosen blue ramp, plus a backplate.
Add a spare of your top-face material; the visible layer is the one you least want to re-cut from a marginal sheet.
Match thickness to layer count using Step 1 before ordering, so the finished stack is the height you intend.

Next steps and project ideas

Walnut backplate + natural birch bands is the classic warm lake-house contrast.
All-clear acrylic topo for a minimalist, architectural ghost mountain.
Glue up a striped walnut-and-maple blank and cut a 3D piece so the layers reveal contrasting bands.
Cork as a shore plate reads as aged paper under a printed or engraved map.
Slate or bamboo for a single engraved (non-stacked) map when you want weight and a premium feel.