WISA-Birch Maxi

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WISA-Birch Maxi is a high quality scarf jointed panel for applications where an excellent strength to weight ratio is needed along with large seamless surface. Strong standard construction can be optimised even further by using strength oriented construction when needed. Due to its light, smooth and even surface WISA-Birch Maxi offers an optimal base for different overlaying methods.

Description

WISA-Birch Maxi is a high quality scarf jointed panel for applications where an excellent strength to weight ratio is needed along with large seamless surface. Strong standard construction can be optimised even further by using strength oriented construction when needed. Due to its light, smooth and even surface WISA-Birch Maxi offers an optimal base for different overlaying methods.Properties
Excellent strength/weight ratio
Possibility to customise according to your needs
Light, smooth and hard surface
Wide size and thickness range available with strict tolerances
End-uses
Vehicle floors
trailers
buses
railway wagons
Surface type
Panels have clean sanded wooden surfaces. Maxi panels are produced by scarf jointing normal sized birch plywood together. The scarf joint can be seen as a brown line on the plywood surface.
Surface and edges
Available surface qualities BB(III) or WG(IV)

For detailed info see document about surface qualities.
Generally, panels have different appearance on each surface,

eg. quality is defined BB/WG.
Panel size
1800 x 3000 mm

2000 x 3000 mm

The largest scarf-jointed size 12300 x 2700 mm

CNC-machined components according to customer drawings and designed strength properties available on request.

Thicknesses and technical properties

Nominal
thickness (mm)
Number of plies Tolerance Weight about kg/m2
min. – max.
9 7 8.3 – 9.1  6
12 9 11.0 – 12.0  8
15 11 13.8 – 14.8  10
18 13 16.6 – 17.6  12
21 15 19.5 – 20.5  14
24 17 22.3 – 23.3  16
27 19 24.7 – 26.3  18
30 21 27.6 – 29.4  20

Moisture content 8 – 12%.