Wood & Aluminium Bi-Fold Doors

At Rationel we know how proud you are of your home and how secure you need to be. Our doors are produced with the same views at the forefrnt of our minds. Please view the selection of Rationel wooden bi-fold doors below.

Aluminium Bi-Fold Doors

Folding Glass Door SL 67

A unique alliance: The SL 67 combines wood sections with rear-ventilated external aluminium facing sheets and an interior that offers the unique charm and warmth that can only be found in natural products. Maximum weather protection enhanced in an exclusive design offer a unique combination of style and functionality.

  • 66 mm installation depth
  • Heat-insulated wood/aluminium folding glass door
  • Standard wood: pine and spruce, other wood types optional
Aluminium Bi-Fold Doors

Folding Glass Door SL 97

A very high thermal insulation characterizes the SL 97 folding glass door of wood / aluminum. Laminated wood profiles with 96 mm in depth, an additional insulation layer and triple glazing.

  • 96 mm element thickness
  • Sealing against wind and rain by triple wraparound seal
  • Spruce or pine wood, alternatively, other woods are available
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