Bunnings Mirrabooka showcases the iconic “big green box” with an efficient steel-framed portal system and integrated transfer beams to accommodate complex racking requirements. A steel-framed office mezzanine adds valuable floor space, while cantilevered shade sail supports provide clear, unobstructed outdoor areas. PIR panel construction was combined with the steel frame for a streamlined, durable build. The design meets Bunnings’ national brief, ensuring structural consistency across stores and includes allowance for future expansion of the timber yard.