The door leaf is made of steel panels filled with CFC-free polyurethane foam; complete with torsion springs rated at 22 000 cycles to counterweigh the door leaf weight. panels are filled with CFC-free PU foam with galvanized steel sheets with the woodgrain, smoothgrain, sandgrain or silkline outside texture available with high, low, V or no ribs; the inside texture is woodgrain. The panels are coated with polyester coatings and/or veneer boards and secured with galvanized steel sheet hardware. The bottom section features a gasket with contact with the ground, while the top section features a gasket with contact to the headroom when the door leaf is closed. The panels feature formed anti-pinching protection and gaskets between each two segments.
The structural elements of the door are made of galvanized steel (slides, fasteners) or galvanized steel sheet and coated with polyester paints (panels). The leaf is made up of segments with a thickness of 40 [mm]. Long-term use is guaranteed by high quality panels available in several options: a full steel panel, a steel glazed panel, an aluminium glazed panel, VISUAL glazing aluminium panel. The manufacturing process of a sectional door panel features a unique system of multi-layered sheet metal bending, which ensures stable mounting of hinges. 200 RAL colours for powder coating.