In modern homes, access to the terrace or garden goes far beyond traditional balcony doors. Large-format systems are gaining popularity, allowing you to literally open up to the outdoors — seamlessly connecting the interior with the surrounding nature. But which is the better option: sliding doors or folding doors? Let’s explore the differences.
Sliding vs folding aluminium doors – a comparison
Sliding doors come in a variety of configurations, offering complete design freedom. Depending on the size and structure (number of sliding panels), you can choose between single-, double-, or triple-track systems. These elements can extend from floor to ceiling, creating impressive glass façades.
Reynaers Aluminium also offers systems that allow you to add extra tracks, making it possible to design very wide openings with multiple sliding sashes.
Looking for something truly unique? An open corner configuration connects two perpendicular sliding sections without fixed posts — creating a seamless panoramic view. Slim aluminium profiles and minimalist design ensure uninterrupted visibility and a stronger connection with the outdoors.
During the construction stage, you can also consider a pocket system, where the sliding panels retract completely into the wall cavity. This eliminates visible frames and saves valuable space. Once opened, the result is a full-width, unobstructed passage — a perfect choice for bold, contemporary architecture that merges indoor and outdoor areas.
Folding doors (also known as bi-fold doors) offer even wider openings than sliding systems. The panels fold neatly to one side, creating a large open space onto the terrace or garden. This flexible solution allows you to open the entire span or just a part of it, depending on the weather or your needs.
Reynaers Aluminium’s bi-fold systems are highly versatile, available in multiple opening configurations and threshold options to suit any project. They can also be combined with fixed glazing or integrated doors, ensuring both functionality and design consistency.
Sliding or folding – which to choose?
The key factor when deciding between sliding and folding doors is the architectural and technical layout of the building. Once this is established, you can assess aesthetic and functional priorities.
Where space is limited, sliding doors are often the smarter choice. Large doors can sometimes be heavy to move — but not in the case of Reynaers Aluminium lift-and-slide systems. Thanks to an advanced sliding mechanism with an extended handle and intelligent gearing, all it takes is a 180° turn of the handle to lift the door a few millimetres — dramatically reducing friction. As a result, even large glass panels glide effortlessly.
On the other hand, if your priority is to create a wide, fully open transition between the interior and the garden, folding aluminium doors are the perfect solution. They allow you to open the entire façade, seamlessly connecting your indoor and outdoor living spaces.
Both solutions deliver high user comfort, modern design, and exceptional functionality. For added accessibility, threshold-free designs eliminate barriers between rooms and terraces — an ideal feature for children, seniors, and people with reduced mobility, ensuring safe, smooth transitions from floor to floor.
