RJC were structural engineers for the original BMO Centre Expansion, formerly referred to as the Roundup Centre. The expansion features an exhibition hall with adjacent multi-function space with 47,300 sq. ft. of column free space, while the function and conference centre space is over 53,000 sq. ft., adding much needed convention and trade show space for the city of Calgary. An 8-metre tall doorway and a post-tensioned concrete structural slab on grade permits oversize or heavy-haul equipment to be displayed in the exhibition hall.