Finnforest UK


KERTO-S MULTIPLE PLY BEAMS

SIDE LOADED
Joists applied to one or both sides of the beam.  Select the suitable nailing or bolting pattern from the table below to suit the applied load.

Side loads are not recommended for 180mm wide beams unless applied equally to both beam faces.

 

 



1.    All values for long term load duration.  Apply factors
       1.12 and 1.25 for medium (roof) and short term (wind)
       loads respectively.

2.    Use spacing patterns above.
3.   39mm Kerto-S may be used in place of 45mm for
      details A, B and E.  When using multiple ply 39mm
      Kerto-S, 75mm long nails may be used in place of
      90mm long nails.  

TOP LOADED

For a downstand beam with joists above, fix plys using 3.35 x 90mm nails at 300mm c/c.  For discontinuous joists, if loads are not applied equally on each ply, please refer to the table on side loaded beams.







NAIL AND BOLT SPACING
FOR TOP AND SIDE LOADED BEAMS