Movement Guillotine panels travel vertically, while sliding panels move horizontally. Guillotine systems need power and a motor; sliding systems are usually manual.

View and opening A fixed lower guillotine panel can act as a balustrade, with moving glass stacking vertically. Sliding panels park to the side, so the clear opening depends on the track and panel configuration.

Thermal and wind performance Both may use single or insulated glass. Performance also depends on profiles, seals, thresholds and installation junctions. Wind-exposed façades require engineering checks.

Cleaning and maintenance Cleanable guillotine designs improve access, while sliding tracks must be kept free of debris. Motorised systems also need periodic mechanical and electrical checks.

Which is right? Guillotine glass is strong for hospitality and view-led spaces. Sliding glass is often flexible and economical for balconies and winter gardens. The final choice should follow a site survey.