The Joinery System is a heat insulated aluminum door and window system with a frame depth of 64 mm. 74.2 mm sash depth and 1.6/1.8/2 mm wall thickness profile options are available. 24 mm heat barrier and 44 mm maximum glass thickness. It provides ease of application with sash profile options suitable for normal opening, double axis, transom, pull-sliding, folding opening and PVC opening accessories.