{"id":6116,"date":"2026-10-12T11:33:09","date_gmt":"2026-10-12T03:33:09","guid":{"rendered":"https:\/\/www.raxdoors.com\/blog\/high-speed-folding-door-large-openings\/"},"modified":"2026-10-12T12:55:26","modified_gmt":"2026-10-12T04:55:26","slug":"high-speed-folding-door-large-openings","status":"publish","type":"post","link":"https:\/\/www.raxdoors.com\/de\/blog\/high-speed-folding-door-large-openings\/","title":{"rendered":"Hochgeschwindigkeits-Faltt\u00fcren: Die richtige Wahl f\u00fcr gro\u00dfe \u00d6ffnungen"},"content":{"rendered":"

A ten-metre-wide opening breaks normal door selection logic. Wind pressure grows with the curtain area, so a design that behaves on a three-metre bay can deform or leave its guides on a wide exposed elevation. The crane beam above the opening eats the headroom a door needs, and the traffic schedule will not wait for a heavy leaf to crawl open. Quotes arrive, every brochure looks similar, and the differences that decide the installation are the ones nobody measured.<\/p>\n

Our factory has built high speed doors since 1999, including roll-up curtains from 0.8 to 2.5 m\/s and a rigid spiral line rated for Class 5 winds. Large openings are a weekly specification exercise for us, and most enquiries describing a high speed folding door large openings project reduce to four questions: mechanism, wind, space and traffic. This guide answers them in that order, then closes with a checklist you can take to any supplier.<\/p>\n

Why a Large Opening Resists Standard Door Logic<\/h2>\n

The first difference is load, because wind exposure scales with width times height. A 20 by 7 metre elevation presents more than fifteen times the area of a small interior bay. Door makers answer with structures rather than fabric alone. One UK supplier arms its folding speed door with steel wind bars and a galvanised frame for openings up to 20 metres wide. A Turkish manufacturer quotes 42 square metres with resistance to 80 km\/h winds. Where the opening has headroom instead of side wall, the guide to high speed PVC stacking doors<\/a> covers the overhead fold pack that stores the curtain above the header.<\/p>\n

The second difference is speed expectations. Buyers who have seen a 2 m\/s roll-up assume any fast door matches it, yet a folding curtain carries a large, heavy panel area. One UK door maker states plainly that it moves slower than a rolling door for that reason. Setting the right opening speed<\/a> for the traffic, rather than the highest number on a datasheet, matters even more on big elevations where every cycle moves more air.<\/p>\n

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Area is the multiplier: a 20 m x 7 m curtain presents roughly fifteen times the wind-exposed area of a 3 m x 3 m bay. Doors for such openings are rated by structure and wind class, not by curtain weight alone.<\/p>\n<\/div>\n

Traffic multiplies every one of those effects, because a large opening rarely serves one movement a day. Each slow cycle adds waiting time on both sides of the doorway, and each extra minute of open area trades conditioned air with the weather. Buyers who model their daily cycle count before requesting quotes usually find the mechanism shortlist shortens on its own.<\/p>\n

The third difference is everything above the opening. Crane beams, sprinkler lines and lighting compete for the same space the door needs when it opens, so the stacking method is a layout decision, not a detail. Measure the lintel zone before comparing quotations.<\/p>\n

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Wide industrial elevations concentrate every selection problem: wind area, headroom and traffic in one line.<\/figcaption><\/figure>\n

Three Folding Mechanisms and Where Each Fits<\/h2>\n

Folding fast doors are not one design. The mechanism decides how the curtain travels, what it weighs on the structure, and how much room it claims, so separate the three families before comparing brands.<\/p>\n