The Urban Developer
04 September 2026
When Western Sydney International (Nancy-Bird Walton) Airport (WSI) opens next month, it will feature a structural first: a twin-beam terminal design believed to be the first of its kind in Australia, and possibly the world.
Behind it is a three-year collaboration between Fielders’ Design Solutions Group (DSG) and head contractor Multiplex.
It replaced conventional concrete beams and slabs with large-span Fielders SlimDek 210 composite slabs, supported on welded beams made from BlueScope’s XLERPLATE steel, for a cleaner, more efficient structure...
