A lift-and-slide door system with excellent thermal properties, enabling large-format glazed constructions while maintaining the best thermal insulation values. The system is available in three variants: Basic, Standard and Premium. Each variant features a different threshold.

Using the HST 85 system, large glazed lift-and-slide doors can be manufactured. The maximum width of the entire door set is as much as 6.7 metres, with each sash measuring up to 3 x 2.5 m. For an aesthetic Premium finish, Aluskin aluminium capping can be installed.