The top-hung folding mechanism allows multiple sashes to fold back smoothly and compactly, creating a fully open connection between interior and exterior living space that is simply not possible with a casement or sliding configuration of equivalent width. For homes where the warmth and natural character of timber is preferred over aluminium — for aesthetic, planning or material consistency reasons — the Timber Bi-fold delivers the same dramatic open-plan capability as an aluminium system, in a material that connects authentically with timber floors, internal doors and wall panels. Built on a 60mm or 78mm three-layer exclusive engineered wood beam with high-security espagnolette locking fitted as standard.