Steel and aluminium sections are essential structural and fabrication materials used across residential, commercial, and industrial construction projects in Australia. Our range includes angle iron, flat bar, square tube, rectangular hollow sections, channel sections, round bar, and aluminium extrusions in a variety of sizes and grades. Whether you are building frames, gates, fences, pergolas, or structural supports, Builder’s Warehouse stocks the right steel and aluminium sections for every application. Shop our full range at Builder’s Warehouse — Australia’s trusted supplier for steel and aluminium building materials.