Finnforest UK



KERTO-Q DESIGN VALUES


TECHNICAL SPECIFICATIONS, STANDARD AND DIMENSIONS
The structure of Kerto-Q improves the lateral bending strength and stiffness of the panel, and increases the shear strength when used as a beam.  With cross bonded veneers (one fifth of the veneers are glued crosswise at 90°), there is also an essential reduction in dimensional variations in depth due to moisture.

Kerto-Q is the ideal choice for use as a rimboard with its strength, straightness and dimensional stability.

Kerto-Q is available in widths of 27, 33, 39, 45 and 69mm with depths to suit Finnjoist depths.




KERTO-Q DIMENSIONAL VARIATIONS

For further design information see Kerto BBA Certificate No. 00/3717.

Example: A 240mm deep beam with a moisture change from 10% to 15% = a 5% change

  5 x 240mm x 0.03% = 0.36mm increase in depth


KERTO-Q PERMISSIBLE GRADE STRESSES


*  Allowable stress design values for use with BS5268.