Universal Design (UD) is seen as a challenge for the future of the construction industry in general, and for manufacturers of building components in particular. Functional units such as windows and pedestrian and industrial doors are particularly affected as they can play a device role improving living comfort, safety and security, and because they are in active use. UD is a concept for developing simple and sustainable products that meet the needs of as many users as possible. Taking UD seriously is well worthwhile, since it brings together many of the demands and desires of the future buyers.