Abstract: A glazed assembly is formed of a frame assembly and a sash assembly that is slideable in the frame assembly. The frame assembly is formed of at least four frame parts that have identical cross-sectional shapes. The sash assembly is formed of at least four sash parts that have identical cross-sectional shapes, and a glazing. The frame parts present engaging elements and guide grooves on the two sides thereof facing and opposite the sash assembly so that multiple glazed assemblies can be formed arranged in building block fashion both vertically and laterally of the one frame assembly. The sash parts also present engaging elements and guide grooves; all of said engaging elements have the same cross-sectional shape as a "T", while all of the guide grooves have identical cross-sectional shapes; and the guide grooves and engaging elements are intermating so that a glazed assembly may be formed of the fewest number of differently shaped parts.

Abstract: Modular case and frame sections for assembly into a self-supporting case and frame for lifting and/or sliding doors and/or windows, the case section being a hollow generally rectangular element having a pair of main chambers and a smaller chamber therebetween, first recess means on said element and guide means received therewithin. Said frame is defined by a pair of hollow side parts and a hollow bridging part, second and third recess means defined by said side and bridging parts, said second recess means being larger in cross section than the first recess means and capable of receiving connection means, closing means and carriage means therein.