Custom Aluminum Bifold Doors

YSF73A is listed as a non-thermal-break folding door; YKF80A is listed as thermal-break. Their catalogue glass build-ups are 5mm+25A+5mm and 5mm+27A+5mm respectively, with 2.0 mm profile wall thickness listed for both. These are catalogue configurations, not a statement that the two complete systems have the same performance.

Indicate the preferred stacking side on a drawing and specify the viewing direction. The proposed combination must be checked against the chosen series, opening size and panel arrangement. Do not assume every arrangement is available for both ranges.

Send the overall width and height, preferred panel count and required clear passage. The panel sizes, glass, hardware and stacking arrangement need to be considered as one system. A panel count should be agreed for the actual opening rather than copied from a catalogue photograph.

Tell us if you need to enter and exit without opening the complete folding arrangement. Whether a traffic panel can be incorporated depends on the proposed layout and system. Identify which side should provide routine access.

A folded stack occupies space beside the opening, and the panels need clearance as they move. Send a plan view showing nearby walls, furniture and circulation routes. The required clearance should be checked against the actual panel layout.

Include the required access detail and exposure conditions in your inquiry. A threshold needs to be considered together with drainage and installation; a flush appearance is not by itself a weather-performance guarantee. Ask for the detail proposed for the selected system.

Our factory document collection includes folding-door records for specific systems and configurations. Give us the proposed series and project requirements so the relevant documents can be discussed. Similar model numbers do not automatically establish that a report covers your exact order.

Compare the panel-stack space, clear passage, routine access and threshold requirements first. Then compare the actual frame and glazing configuration. Our bifold vs sliding guide sets out these decisions side by side.