Create a glass façade to your property with SUNFLEX Bi-folds doors. Featuring contemporary, square edged profiles throughout and colour matched furniture, available double or triple glazed. The SF55 and SF75 are the only German made system with a BSI Kitemark certificate. The SF55 allows for a larger opening due to its 55mm front to back frame, whilst the SF75 features a 75mm frame with slim 115mm sight lines. Available in any RAL colour or brushed stainless steel effect.