WISA®-Birch

Description

All birch veneer, structural grade plywood to which the section properties, grade stresses and moduli listed in BS 5268-2 apply; see also 'Handbook of Finnish plywood' (visit manufacturer's website for details).

Plies are bonded using a phenolic resin, cross-bonded, weather resistant glue to EN 314-2, Class 3 'Exterior'.

Shapes, profiles and drillings can be machined to specifier's drawings.

As wood is a living material, every panel is unique. Thus a photograph or a sample piece cannot represent all variations in colour, shade, graining, knots, etc.

General information

Finish

Sanded along the grain

Available on request.

Unsanded

Features

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

Material

Birch plywood

Shape

Rectangular

Uniclass 2015

Pr_25_71_97_86 Structural veneer plywoodsPrimary

CAWS

G20/15 Plywood

G20/310 Structural plywood

G20/311 Non-structural plywood

H20/150 Sheet cladding

H20/155 Sheet cladding

K11/115 Battened plywood floating floor

K11/215 Plywood floating floor

K11/315 Plywood flooring

K11/40 Plywood

K11/415 Plywood wall sheathing

K11/515 Plywood roof decking

K11/615 Plywood sarking

K11/715 Plywood underlay

K11/815 Plywood

M40/10 Natural stone covering to

M40/110 Tiling to

M40/115 Natural stone covering to

M40/120 Mosaic to

M40/15 New backgrounds/ bases

M40/400 Backgrounds

M40/5 Tiling to

M50/55 Plywood underlay

M50/560 Plywood underlay

M51/371 Plywood underlay

N10/10 Purpose-made

N10/110 Purpose-made

N10/160 Shelving system

N10/30 Shelving system

P20/240 Plywood

P20/40 Plywood

Specification data - Structural veneer plywoods

Product Reference

WISA-Birch

WISA-Birch Special

Face veneer appearance class to BS EN 635

Class II

WISA-Birch Special only. Grade S to SFS 2413.

Class III

WISA-Birch only. Grade BB to SFS 2413.

Reverse veneer appearance class to EN 635

Class IV

WISA-Birch only.

Finish

Sanded along the grain

Available on request.

Unsanded

Thickness

6.5 mm

9 mm

12 mm

15 mm

18 mm

21 mm

24 mm

27 mm

30 mm

Edge profile

Square

As standard.

Tongued and grooved two long edges

Tongued and grooved four edges

Panel size

Contractor's choice

Product Options

Face veneer appearance class to EN 635:

Available face veneer qualities:

  • II – surface suitable for painting or coating.
  • III – surface suitable for painting or coating with thicker materials.

Face grades II and III are recommended where high strength is needed. For the best face grades for visible, demanding applications see WISA-Birch Premium.

Thickness (number of plies); weight:

  • 6.5 mm (5 ply); 4.4 kg/m².
  • 9 mm (7 ply); 6.1 kg/m².
  • 12 mm (9 ply); 8.2 kg/m².
  • 15 mm (11 ply); 10.2 kg/m².
  • 18 mm (13 ply); 12.2 kg/m².
  • 21 mm (15 ply); 14.3 kg/m².
  • 24 mm (17 ply); 16.3 kg/m².
  • 27 mm (19 ply); 18.4 kg/m².
  • 30 mm (21 ply); 20.4 kg/m².

Other thicknesses available on request. Thicknesses and tolerances meet requirements of EN 315.

Panel size:

Standard sizes are:

  • 1220 x 2440/ 3050/ 3660 mm.
  • 1250 x 2500/ 3000/ 3600 mm.
  • 1500 x 1500/ 2400/ 2500/ 3000/ 3600 mm.
  • 1525 x 1525/ 2440/ 2550/ 3050/ 3660 mm.

Scarf jointed panels up to 1950 x 5600 mm available on request. Strength of scarf joint is 10–30% less than that of standard panel.

Digital objects

Platform Compatible Version Certified to
IFC

IFC2X3

1

1.3
Revit

Revit 2016

2

2.0
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Literature

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