Bunnings Bellambi is a single storey steel-framed warehouse structure, approximately 230m long and 75m wide. The entire slab on ground is suspended on timber piles due to the poor soil quality on the site. The site is flood-prone and so the structural team worked closely with the builder to determine the most economical way to suspend approx half of the ground floor slab to facilitate flood event flows as well as working with the civil engineers to determine the most economical way to provide the required flood storage underneath the ground floor slab. The ground conditions also necessitated an alternative solution to the traditional slab-on-ground approach utilised with most industrial warehouses. Northrop designed timber pile foundations on a grid of ground beams, spaced to provide an efficient slab on ground that met the requirements of the client’s brief with regards to strength capacity, joint locations and finishes. This store is one of the first to utilise a Fusion Modular mechanical system for customer comfort internally and so we worked closely with the client and builder on the framing of the insulated sandwich panel walls. As usual Northrop provided prompt and reliable construction phase services to allow the builder to progress site works. We were able to provide guidance and advice relating to crane movements, suggest changes to structural systems to better suit the construction program and liaise with other sub-consultants to ensure coordination of our design.