Description
A comprehensive library of imperial steel tube blocks — rectangular and square hollow structural sections (HSS) — covering sizes from 2x2x3/16 up to 20x12x5/8 (width by height by wall thickness in inches), with each size drawn in three views — end, side and top — and labelled with its designation. A handy reference for steel detailing and structural drafting. A free AutoCAD DWG file download.





