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
According to standard EN 13501-1:
B-s1, d0 (roof and wall 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.
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.
T & G on request
Standard panel sizes (mm)
Length from 2400 to 2500 mm
Width from 1200 to 1250 mm
Thicknesses and weights
|Nominal thickness (mm) ||Number of plies ||Thickness (mm) ||Weight kg/m2 |
Sizes and thicknesses relating to moisture content 8 - 10 %.
Thicknesses and tolerances fulfil EN 315 requirements.