Hollow structural sections (HSS) come in various thicknesses, and the thickness depends on the specific size and type of HSS. HSS are typically categorized by their nominal dimensions, which include the outer dimensions (width, height, or diameter) and the wall thickness. The wall thickness is what determines the structural integrity and load-bearing capacity of the section.
Common wall thicknesses for HSS can range from thin-walled sections with relatively small thicknesses to thicker sections for heavier-duty applications. Some standard wall thicknesses for HSS include:
Light Wall: These are HSS with relatively thin walls, often used in non-structural or decorative applications. The wall thickness can be as low as 1.2 mm (0.047 inches) or even thinner.
Standard Wall: These HSS have medium wall thicknesses and are commonly used in various structural applications. The wall thickness can vary but is typically in the range of 2.0 mm (0.079 inches) to 6.35 mm (0.250 inches) or more, depending on the size and type of the section.
Heavy Wall: For heavy-duty structural applications, HSS with thicker walls are used. The wall thickness in this category can be considerably greater than in standard wall sections.
