Description
A comprehensive library of imperial steel S-shape blocks — American Standard beams, the tapered-flange I-sections — covering sizes from 3x5.7 up to 24x121 (depth in inches by weight in pounds per foot), with each size drawn in three views — end (cross-section), plan and side — and labelled with its designation. A handy reference for steel detailing and structural drafting. A free AutoCAD DWG file download.





