Working principally in kiln dried mahogany hardwood from West Africa (with other timbers available to order) we manufacture from renewable and sustainable timber which is FSC (Forestry Stewardship Council) certified. After machining and once assembled the frames receive one base coat and two top coats of a microporous stain or paint. All the fixings, hinges, locks and furniture are of stainless steel or non-ferrous metals and meet the same high standard used in our uPVC products. Our vertical frames are made to receive standard 28mm double glazed sealed units. All units are manufactured to conform with British Standards and, where toughened glass is required, that also carries the BS ‘kitemark’.