Bent plywood is the workhorse of curved furniture parts: a cross-laminated veneer core bends across the grain without the splitting risk of solid wood, and holds a tighter, more consistent curve. These answers cover construction, bend radius, finishing and how to specify a curved plywood part for production.
Page created 2026-10-14.
Questions and answers
What is the minimum bend radius for bent plywood?
For laminated plywood the practical bend radius is roughly 5 to 10 times the panel thickness, which is 5 to 20 times tighter than solid wood of the same section. A 10mm birch panel can typically be formed to a 50 to 100mm inside radius; below that you need thicker veneers or more frequent pressing.
Which core material should I choose for bent plywood?
Birch gives the cleanest bend and a pale finish, poppler (aspen) is easier to form and lighter, and birch-plywood is common for structural chair shells. We supply birch-core, poplar-core and mixed-core panels, with FSC or PEFC chain-of-custody material on request.
How many plies should a curved panel have?
Fewer plies allow a tighter radius; more plies give a smoother continuous curve and better screw-holding. Furniture chair shells are commonly 9 to 15 ply, while lighting and decorative panels use 5 to 9 ply. We can advise the lay-up for your radius and load.
Steam bending or press-curving – which is better for plywood?
Press-curving in a heated mould is faster, more repeatable and dimensionally stable, and it is our default for plywood. Steam bending suits thicker panels and very large radii. Most production orders are pressed; steam is used where the drawing calls for it.
What glue is used and is it compliant?
We use PU and PVA adhesives that meet CARB Phase 2 and TSCA Title VI for indoor air quality, with formaldehyde-emission classes available on request. All laminated panels are fully cured and press-dimmed before machining.
How accurate are the finished curved panels?
We hold dimensional tolerance of ±0.5mm on machined features after drying. Curvature is checked on a template at the press and again after conditioning, so parts fit consistently across a production run.
Can you supply curved plywood parts with CNC-machined features?
Yes. We CNC-machine drilling, routing and pocket features after forming, so you receive ready-to-assemble components with consistent hole positions and reference faces for jigs.
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Still have a question?
Send us your drawing, radius and section size and we will confirm feasibility, tooling and lead time. You can also request a quote or message us on WhatsApp.