The dimensions of a rectangular hollow section are usually expressed in the format of “width x height x wall thickness”. For example, 50mm width x 50mm height x 10mm wall thickness would be written as 50x50x10
Rectangular Hollow Section Sizes
Rectangular hollow section width is usually between 20mm and 600mm, height is between 20mm and 400mm, wall thickness is between 2mm and 20mm, specific specifications are subject to standards and supplier specifications
References
Hollow structural section
Packer J.A. Rectangular Hollow Sections in Construction. ASCE, 2023.
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