Made from timber, Rationel Forma windows and doors are characterised by traditional lines and natural wood-finished beauty, and can be made bespoke to suit any project.

Designed to complement traditional British architecture, Forma windows and doors bring the classic into the current day to create a finished look that’s simply stunning. The angled glazing bead and slim glazing bar configurations make it an ideal choice for traditional style properties.

This timber windows style comes with angled glazing bead and ovolo moulded profile make it an ideal choice for country-style and traditional designs. With an extensive selection of colour choices available, you’re sure to find one you’ll love inside and out.

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