What is BS EN 13126‑15 - Rollers for horizontal sliding and folding windows about?
BS EN 13126 is a series of the European standard on hardware for windows and door height windows that can be easy to operate and can help provide added security as well as paying more attention towards the look and finish of the door and its hardware.
BS EN 13126‑15 is the 15th part of the BS EN 13126 multi-series of standards that specifies requirements and test methods for durability, strength, security and function of rollers for horizontal sliding and hardware for inward or outward sliding folding windows and door height windows in accordance with the common application.
NOTE1: BS EN 13126-15 is applicable to rollers irrespective of whether they are adjustable or not and irrespective of the method or type of fixing or if they are used independently, or in multiples or combinations.
NOTE2: All components of the hardware (e.g., guide tracks, lateral guides, rails, hinges) used while testing the rollers for sliding folding windows and door height windows (window types Q, R and S) are considered to be part of the complete sliding folding hardware set.
Who is BS EN 13126‑15 - Rollers for horizontal sliding and folding windows for?
BS EN 13126‑15 on rollers for sliding windows is useful for:
- Manufacturers of windows
- Manufacturers of window sliding rollers
- Manufacturers of hardware set
- Mechanical engineer
- Architects and interior designers
Why should you use BS EN 13126‑15 - Rollers for horizontal sliding and folding windows?
A Horizontal Roller is a versatile window with sashes positioned side by side with a slight overlap built into the top and bottom of the frame to allow the window to be opened and closed horizontally.
BS EN 13126‑15 specifies the durability test for rollers for horizontal sliding windows (window type N) and for sliding folding hardware (window type Q, R and S) to perform smooth left and right horizontal movement of windows.
BS EN 13126‑15 provides a loading test and static endurance test for rollers of sliding windows guiding lateral movement.
The marking and packaging of the products are outlined in BS EN 13126‑15.
Moreover, BS EN 13126‑15 assist you in the designing of rollers for horizontal windows that offers a wide window opening while providing durability and style coordinating with your home’s exterior and interior architecture.
In this way, horizontal rollers are much easier to open in any case, simple to clean, enhance natural light and outdoor views provide plenty of ventilation.
What’s changed since the last update?
BS EN 13126‑15:2019 supersedes BS EN 13126‑15:2008 includes some technical changes with respect to BS EN 13126‑15:2008. These include:
- EN 13126-15 now is independent of EN 13126-1; all necessary information is included without the need for any further information from EN 13126-1
- New terms and definitions added
- Classification system changed completely; former digits 1 (Category of use), 4 (Fire resistance), 5 (Safety in use) and 7 (Security) deleted; former digit 2 changed into box 1 (Durability), former digit 3 changed into box 2 (Mass), former digit 6 changed into box 3 (Corrosion resistance), former digit 9 changed into box 4 (Test sizes) and former digit 8 (application) transferred into box 5 (application)
- New example of classification added in accordance with the new classification system; 2 alternative ways (table or alphanumerical) to show the classification defined

