Respond to these showcases www. ajplus. co. uk/ajdirect Readers may obtain information about these products by filling in the enquiry numbers on an AJ enquiry card. Advertisers wishing to promote their products on these pages should contact Chris Bond on The latest addition to the range of Olsen doors from Scandinavian Window Systems was designed and tested in the National Building Institute in Trondheim, Norway, specifically for this penthouse apartment project with EWA Architects and Eugena. The 'corner door' allows two sliding panels to meet at 90°.