FerroFinestra® W40

The new generation of solid steel windows


The classic W40 range is an evolution of the famous W20 range developed in 1964. Produced for the first time in 1995 it consists of 18 profiles and follows the unmistakable classic design of its predecessor. The strong point of this “young” series, is the increased profile depth, which allows to accommodate double glazing up to a thickness of 27mm. The W40 suite proposed by OTTOSTUMM is not only used in the field of restoration, but it’s also highly acclaimed in contemporary architecture for its elegant and compact sightlines, ensuring safety and comfort thanks to its excellent thermal and acoustic performance. Despite the depth of this system is only of 42 respectively 47 mm, technically it is considered a “heavy duty” range, which allows making large windows thanks to the extraordinary strength of steel.
Any kind of inward or outward openings: side-hung, double-vent (French style), bottom-hung, top-hung or projected top-hung, horizontally and vertically pivoted windows, as well as large sliding and folding doors.

Features of W40

  1. Solid hot rolled steel profiles
  2. “Stepped leg” design
  3. Material thickness up to 5 mm
  4. Very compact profiles with minimal depth and
    sightlines
  5. Self-adhesive non-shrinking gaskets
  6. Low emissivity double-glazing up to 27 mm
  7. Choice of different glazing beads
  8. Appropriate for heavy-duty corrosion protection
W40 profile range

W40-profiles

slide-in glazing beads

W40-Glazing-beads

glazing beads / false muntins

W40-glazing-muntins

Clips for glazing beads

W40-Clips

gaskets

W40-Gaskets