Sliding doors are one of the most popular solutions in modern architecture today. They provide ample natural light, allow for a smooth transition to the terrace or garden, and significantly enhance the overall aesthetics. Among the available terrace systems, three types stand out as the most commonly chosen: HST, PSK, and Slide. While they serve similar functions, they differ in mechanism, user comfort, design capabilities, and price.
Below, we present key information to help you choose the best system for your home.
PSK – Tilt-and-Slide system
The PSK system is a classic solution for balcony doors with a tilt function. The operating mechanism allows the sash to first tilt inward and then slide sideways along special rails.
Tilt function: Allows the sash to be tilted slightly for ventilation without fully opening the door.
Compact dimensions: Ideal for standard balcony openings with moderate widths.
Lower investment cost: PSK is the most economical of all sliding systems.
Lower user comfort: Opening and closing requires more effort compared to lift-and-slide systems.
Size limitations: For very wide glazed areas, the PSK system may not be sufficient.
The PSK system works well in single-family homes and in projects where the investment budget is a key decision factor.
HST – Lift-and-Slide system
HST is a premium solution used in modern buildings where user comfort and large glazing surfaces are a priority. When opening, the door sash in an HST system is first lifted and then smoothly slides along a guide rail.
Smooth and effortless sash movement: Even for large and heavy structures.
Very large glazing options: Structures can reach widths of up to 6 meters.
Low-threshold option: Ideal for barrier-free homes and users who value aesthetics and convenience.
High tightness and insulation: Excellent thermal performance and protection against weather conditions.
Higher purchase and installation cost: Compensated by superior quality and ease of use.
The HST system is ideal for investors seeking modern, comfortable, and visually striking architectural solutions.
Slide – lightweight sliding system
Slide is a modern solution that combines appealing aesthetics with operational simplicity. In this system, the sashes slide parallel to each other without any tilt function. Operation is intuitive and requires minimal effort.
Simple and smooth operation: The sash slides without needing to be lifted or tilted.
Attractive appearance: Slim profiles can be used to create the effect of large glass surfaces.
Good tightness: Properly selected sealing systems ensure high protection against wind and rain.
More limited glazing options: Compared to the HST system.
No tilt function: Slide doors can only be moved, not tilted.
Slide systems are often chosen in modern residential buildings and in properties where aesthetics and ease of use are key factors.
The right terrace system should be tailored to both the users’ needs and the nature of the building. If your priority is large glazing and maximum comfort – HST is the best choice. If your project requires cost optimization and the technical requirements are moderate – PSK is a good option. Meanwhile, the Slide system is perfect for those looking for modern design and easy operation at a reasonable price.
Each of the systems described has its place in modern architecture, and choosing the right one can significantly enhance the comfort of your home or apartment.
Contact us to find the perfect patio door system for your home!