At 41.6 metres wide, the structure is the widest clear-span roof constructed by Spantech to date. The span was achieved using the Pinkenba 370 profile. Wide-span roofs normally require large trusses and a lot of structural steel support. The Pinkenba 370 does not require any internal structural support. It is a completely self-supporting arch. It can span up to 40 metres wide in Australian regions and up to 41.5 metres in New Zealand (subject to wind terrain categories and other engineering loads).
The roof is supported on 6.5 metre high precast concrete walls with a roof apex height of 15 metres.
The Spantech panels are rolled from double-sided pre-painted ColorGuard steel for extended life. The roof also features a completely sealed internal finish, skylights, actuated controlled roof vents and end wall louvres.