WISA-Form Slab

WISA-Form Slab is coated spruce plywood for use in horizontal concrete forming. The light weight of the panel makes it easy to handle and a specially designed overlay masks the grain structure of the face veneer for a good quality finish.


  • Light weight
  • Easy to handle
  • Smooth finish
  • Good striking properties


  • Horizontal formwork
  • Special formwork


Phenolic resin cross-bonded weather resistant glueing according to EN 314-2/class 3
exterior, EN636-3.

Surface and edges

WISA-Form Slab coating weight is 400 g/m2 both sides. 
Face and reverse: Brown phenolic film combination (abt. RAL 8017). 
Edge sealing: Water resistant paint.
Imprinted text: “WISA®-Form Slab”.

Panel size

2400/2440/2500 x 1200/1220/1250 mm

Thicknesses and weight

​Nominal thickness (mm) ​Thickness (mm) ​Weight (kg/m2)
  min - max  
15 ​14.3 - 15.3 ​7.6
​18 ​17.1 - 18.1 ​9.0
​21 ​20.0 - 20.9 ​10.2