Lift and slide doors use a two-stage mechanism: turning the handle lifts the panel off its perimeter compression seal and onto low-friction rollers, then the panel glides along the track with very little force. This allows extremely large, heavy glass panels to be operated effortlessly while maintaining an excellent weather seal when closed. Otiima — available exclusively through Ultimate Windows in Canada — specializes in lift and slide systems with frame profiles as slim as 15mm and glass panels up to 3 metres wide, designed for both residential and commercial projects.