Best Materials for Laser Engraving (and How They Look)
The best materials for laser engraving include wood, acrylic, slate, leather, glass, and coated or anodized metal, each with a different look and laser requirement. Wood, slate, and leather engrave beautifully on affordable CO2 and diode lasers; bare metal needs a fiber laser; and glass and anodized aluminium give crisp, high-contrast results. Choosing the material is half the result — the same design looks very different on maple versus slate.
Wood, leather, and slate (CO2 and diode)
Wood is the classic: hardwoods like maple, cherry, and walnut engrave with clean dark-on-light contrast. Leather engraves a rich darkened mark and smells great doing it. Slate engraves light-on-dark (the burn lightens the surface), which is why photos are often inverted for it. All three work on affordable CO2 and diode lasers and are forgiving for beginners.
Acrylic and glass
Cast acrylic engraves to a frosted white that pops, especially on coloured or edge-lit pieces (use cast, not extruded, acrylic for a clean frost). Glass engraves to a frosted etch; it can chip, so lower power, a dab of dish soap or wet paper over the surface, and a dithered image give smoother results.
Metal (fiber, or coated metal on CO2)
Bare metal — stainless, brass, aluminium — needs a fiber laser, which marks and engraves it with crisp, permanent detail (this is where fiber shines). On a CO2 or diode laser you cannot engrave bare metal, but you can engrave coated metal (powder-coated tumblers, anodized aluminium) where the laser removes the coating to reveal the substrate underneath.
What not to engrave
Avoid PVC and vinyl (they release chlorine gas that is toxic and corrodes your machine), polycarbonate (it scorches and yellows), and any material you cannot identify. When in doubt, look it up before you burn it — some materials are genuinely dangerous to laser.
Try it yourself
Turn a photo into a laser-ready file in about a minute — free, in your browser.
Prepare a photo for engravingFrequently asked questions
What is the easiest material to laser engrave?
Wood — especially hardwoods like maple and cherry. It engraves with clean contrast on affordable CO2 and diode lasers and is very forgiving for beginners.
Can I engrave metal with a CO2 or diode laser?
Not bare metal — that needs a fiber laser. You can engrave coated metal (anodized aluminium, powder-coated tumblers) on CO2/diode by removing the coating to reveal the metal underneath.
Why do photos look inverted on slate?
Slate engraves lighter than its dark surface, so the photo is inverted before engraving — the dark parts of the photo stay as un-engraved dark slate.
What materials should I never laser?
Never laser PVC or vinyl (toxic, corrosive chlorine gas), polycarbonate (scorches), or unknown materials. Identify a material before engraving it.