Very little light gauge steel framing is used for dwellings in Europe.The main reasons are the lack of standards, common proceduresand the difficulties to design such structures with Eurocode 3 part1-3. ArcelorMittal has supported the development of a designtool for low-rise steel framed buildings. The objective is to increasethe light steel framing market thanks to a comprehensive and userfriendly design package. The tool is based on a clearly definedscope and includes conception rules, design method by graphs anda construction details library.