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ISO 40
Alpha’s all-rounder


The ISO 40 mm sectional door is Alpha’s most popular door, a modern design that unifies excellent thermal insulation and sound-absorbing qualities in its micro-profiled panels. The choice of design and materials are endless, which means the door can always be perfectly configured to meet your wishes. Numerous types of built-in windows as well as different heights and widths make up the ISO 40 mm range, as well as a wide variety of Alpha’s in-house RAL colours