| Plywood | Diode or CO₂ | 3–10 mm, depending on power and glue composition | Cutting and engraving | Generally suitable | Use laser-grade plywood with consistent, low-toxicity adhesive. Increase ventilation when cutting engineered wood. |
| Solid Wood | Diode or CO₂ | 3–12 mm for many desktop applications | Cutting, engraving, and marking | Generally suitable | Dry, resinous, or very dense woods may require slower speeds, multiple passes, or higher power. Keep the surface clean and flat. |
| Cast Acrylic | CO₂; some diode wavelengths may mark dark acrylic | 2–10 mm for common desktop CO₂ systems | Clean cutting and engraving | Generally suitable | Cast acrylic usually produces a polished cut edge with CO₂ lasers. Confirm that the sheet is PMMA and not a blended plastic. |
| Paper and Cardboard | Diode or CO₂ | 0.2–3 mm | Cutting and engraving | Suitable with close supervision | These materials ignite easily. Use low power, adequate airflow, a clean bed, and never leave the machine unattended. |
| Leather | Diode or CO₂ | 1–5 mm, depending on tanning and finish | Cutting and engraving | Material-dependent | Vegetable-tanned leather is commonly used. Avoid chrome-tanned or chemically treated leather unless its composition and emissions are verified. |
| Cotton, Linen, and Felt | Diode or CO₂ | 0.5–5 mm | Cutting and surface engraving | Suitable with fire controls | Textiles can scorch or flame quickly. Use suitable airflow, a nonflammable honeycomb bed, and continuous supervision. |
| Rubber Sheet for Laser Stamps | CO₂ | 1–3 mm | Engraving and cutting | Only verified laser rubber | Use purpose-made laser rubber with documented composition. Do not assume that ordinary rubber sheets are safe to process. |
| Glass | CO₂ | Surface marking only | Frosted surface engraving | Suitable for marking | Glass is generally not cut by common desktop systems. Tempered, coated, or laminated glass may crack unpredictably. |
| Anodized Aluminum | Diode, CO₂ with marking compound, or fiber | Surface marking only on diode and CO₂ systems | Marking and color removal | Suitable for marking | Most diode and CO₂ cutters do not cut bare aluminum. Use a fiber system for professional direct metal marking. |
| Bare Stainless Steel | Fiber laser | Marking only on typical desktop fiber systems | Permanent marking and engraving | Requires suitable laser type | Diode and CO₂ machines generally cannot directly mark bare stainless steel without a compatible marking treatment. |
| PVC and Vinyl | Not recommended | Do not process | Not suitable for laser cutting | Avoid | PVC and vinyl can release corrosive and toxic chlorine-containing gases that may harm people, optics, and machine components. |
| Polycarbonate | Generally unsuitable for common desktop cutters | Do not rely on laser cutting | Poor cutting quality and heavy charring | Avoid unless professionally assessed | Polycarbonate tends to discolor, melt, and produce poor edges. Verify the exact grade and safety data before any test. |
| ABS Plastic | Not recommended | Do not process | Unreliable cutting and engraving | Avoid | ABS may melt, ignite, and release irritating decomposition products. Mechanical cutting is usually a safer alternative. |
| Fiberglass and Carbon-Fiber Composite | Not recommended for standard laser cutters | Do not process | Unsafe or poor-quality cutting | Avoid | Resins and reinforcement fibers can create hazardous fumes and abrasive dust. Use a controlled industrial process instead. |
| PTFE and Fluoropolymer Materials | Not suitable for general laser cutting | Do not process | Unsafe thermal decomposition | Avoid | Heating fluoropolymer materials can produce hazardous decomposition products. Do not use them in a standard enclosed cutter. |