WISA-SpruceFR is a fire-retardant plywood product for use in construction. The fire retardant treatment significantly improves fire resistance properties of the product without compromising the plywood panel’s excellent technical performance. WISA-SpruceFR works equally as well as the base product – WISA-Spruce – in all kind of construction, especially in structural uses and load bearing structures.
- Highest fire classification a wood based panel can get
Construction, especially strucural uses and load bearing structures
Weather resistant gluing according to EN 314-2/class 3 Exterior. WISA-Spruce fulfils the requirements of EN 13986 E1 low formaldehyde emission class.
Surface and edges
Face veneer grades II and III (comply with standard EN 635-3).
Additional grade G (improved/solid grade II).
Fire retardant treatment is applied on both surfaces.
Length from 2400 to 2500 mm
Width from 1200 to 1250 mm
According to standard EN 13501-1:
B-s1, d0 (roof and wall structures)
T & G on request
Thicknesses and weights
|Nominal thickness (mm) ||Number of plies ||Thickness (mm)||Weight kg/m2 |
|min. - max.|
|12||5||11.5 - 12.5||6.1|
|15||5||14.3 - 15.3||7.4|
|18||7||17.1 - 18.1||8.6|
|21||7||20.0 - 20.9||9.8|
|24||9||22.9 - 23.7||11.1|
|27||9||25.2 - 26.8||12.4|
|30||11||28.1 - 29.9||14.3|
Sizes and thicknesses relating to moisture content 8 - 10 %.
Thicknesses and tolerances fulfil EN 315 requirements.