Three-layer solid wood panels
Three-layer solid wood panels: build-up, directional strength, common thicknesses and formats, standards, uses as cladding and bracing.
German: Dreischichtplatte
A panel made of three solid wood layers glued crosswise on top of each other. Thanks to its attractive solid wood surface, it is also popular as a visible cladding.
How is it made?
Thin board layers – three, less often five – are glued crosswise with MUF adhesive into a relatively thin panel. Thanks to the crossing, the panel is dimensionally stable and load-bearing in both directions of its plane.
Technical data
- Build-up
- three (less often five) crossed solid wood layers
- Raw material
- spruce, fir, pine, Douglas fir and larch
- Strength
- bending strength 12–35 N/mm² parallel to the grain of the face layer, 5–9 N/mm² perpendicular to it
- Density
- 400–500 kg/m³
- Adhesive
- MUF
- Common sizes
- thickness 13, 15, 19, 27 mm; panel approx. 5.00 × 2.05 m
- Standard
- EN 13353, EN 13986
- What is it for?
- load-bearing and bracing sheathing, facades, formwork
| Format | Thickness (mm) | Layers |
|---|---|---|
| approx. 5.00 × 2.05 m | 13, 15, 19, 27 | 3 (less often 5) |
Applications
- bracing sheathing on timber frame walls, box and ribbed floors, roofs
- facade cladding, interior design, furniture, formwork
- vapour-retarding, airtight layer – if the joints are carefully sealed
What to watch out for
- Strength depends strongly on direction: parallel to the grain of the face layer, the bending strength is several times higher than perpendicular to it – the panel must be aligned with the direction of load transfer.
- The panel size (approx. 5.00 × 2.05 m) differs from the 125 cm grid – it is worth planning the layout accordingly.