Wood-aluminium windows

FB systems have distinct profile edges, similar to the Quadrat system. The FB version is distinguished by its flushed sash which visually creates a unified surface. The special shape of the aluminum sash, which shifts the window pane 5/8” further forward as in more conventional designs, allows for the use of broader glazing with a thinner wood cross-section. Quadrat FB lacks a visible slant and there is a right angle on the surface of its profiles.  Much like other systems, Quadrat FB stands out with high functionality and excellent utility properties.


  • Welded corner connection
  • Mechanical corner connection
  • Wood section thickness 68-92 mm
  • Glazing thickness 24-64 mm
  • Sash and frame profile bending

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