KoskiPly Thin Birch Plywood – Ultra‑Thin, Strong, Laser‑Ready Finnish Birch

KoskiPly Thin Birch Plywood is a premium, ultra‑thin plywood engineered for precision work where strength, flexibility, and flawless surfaces matter. Manufactured in Finland by Koskisen—one of the world’s leading producers of sustainable thin plywood—this AB/B grade material features seamless birch veneers that are uniform, joint‑free, and exceptionally stable.

Available in thicknesses as thin as 0.6 mm (1/32"), KoskiPly is ideal for business cards, jewelry, models, instruments, electronics cases, and fine craft applications where cardstock isn’t strong enough but traditional plywood is too thick. Lightweight, smooth, and easy to machine, it’s a favorite among laser users, designers, educators, and product developers.

Why Buy KoskiPly from MakerStock?

• Premium Finnish Birch Construction — Made from high‑quality birch logs sourced from certified, sustainably managed forests.

• Ultra‑Thin & Surprisingly Strong — Even at 0.8 mm, KoskiPly maintains rigidity and stability thanks to its cross‑banded birch veneer structure.

• Flawless AB/B Grade Surfaces — Joint‑free, uniform veneers with a clean, consistent appearance ideal for visible surfaces and detailed engraving.

• Laser‑Friendly & Safe to Machine — Ultra‑low resin content supports crisp laser cutting and engraving with minimal odor or residue.

• Flexible but Not “Bendy” — Thin sheets offer natural flex (0.8 mm bends to ~2" radius; 1.5 mm to ~4"), but for maximum flexibility, see KoskiFlex.

• Fast, Affordable Shipping — $12 flat‑rate shipping per 50 lb box across the continental US from our PA and UT warehouses.

• No Minimums — Order a single sheet or bulk quantities for classrooms, studios, and production shops.

Perfect For

• Laser Cutting & Engraving Ideal for business cards, bookmarks, jewelry, ornaments, layered art, and precision craft components.

• Models, Prototypes & Instruments Lightweight and stable—perfect for architectural models, engineering prototypes, RC components, and musical instrument parts.

• Electronics & Accessories Great for tablet/phone cases, speaker fronts, and custom enclosures.

• Home & Craft Projects Use for lamps, screens, latticework, décor, toys, and small woodworking components.

Project Inspiration

• Makers: Laser‑cut cards, earrings, ornaments, layered art, organizers, and small‑format décor.

• Schools: STEM models, engineering prototypes, and safe, easy‑to‑machine thin stock.

• Businesses: Branded packaging, signage, product components, and custom accessories.

• DIYers: Lamps, screens, craft projects, and lightweight woodworking details.

Specifications

• Material: 100% Finnish birch veneer

• Grade: AB/B

• Bonding: Interior glue

• Density: ~700 kg/m³

• Finish: Unfinished; sandable; stain/paint/wax compatible

• Workability: Suitable for laser cutting, engraving, CNC machining, scroll saws, and hand tools

• Typical Ply Counts:
  • 0.8 mm (1/32") — 3‑ply
  • 1.0 mm — 3‑ply
  • 1.5 mm (1/16") — 3‑ply
  • 2.0 mm — 4‑ply
  • 2.5 mm — 5‑ply

• Flexibility:
  • 0.8 mm bends to ~2" radius
  • 1.5 mm bends to ~4" radius (For tighter curves, see KoskiFlex.)

• Thickness Tolerances: The thickness tolerance target for the sheets is ± 10%

• Cut Tolerance: ±0.118"

Safety & Compliance

KoskiPly uses ultra‑low‑resin, safe adhesives suitable for:

• laser cutting

• residential and commercial interiors

• food‑adjacent packaging

• children’s products

Meets EN‑71‑3 safety requirements for toys.

⚠️ California Proposition 65 Warning

This plywood product can expose you to wood dust, a substance known to the State of California to cause cancer. Exposure may occur when cutting, sanding, or machining plywood.

Use proper ventilation, dust collection, and PPE during machining. More information: www.P65Warnings.ca.gov

FAQs

• Is KoskiPly good for laser cutting? Yes — it cuts cleanly on CO₂ and diode lasers with minimal char.

• How flexible is it? 0.8 mm bends to ~2" radius; 1.5 mm to ~4". For extreme flexibility, choose KoskiFlex.

• Can I stain or finish it? Yes. KoskiPly accepts stain, dye, wax, lacquer, and paint.

• Is it safe for toys or school projects? Yes — it meets EN‑71‑3 toy safety requirements.
• Is this the same as bendy plywood? No — it is naturally flexible due to its thinness, but not engineered for maximum bendability like KoskiFlex.

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