👉 purlins are vertical slabs of metal or other material used to create a roof or a floor in a building. They can be made from various materials, such as steel, concrete, or even wood, and are often used for industrial buildings, warehouses, and offices. The term "purlins" is derived from the Latin word "purlus," which means "cut." In this context, purlin refers to a vertical slab of metal that is cut into sections to create