I'm trying to work out how much steel I should get and the book doesn't really give you too much help here. From what I've read I think I need 42m of 25x25 and 18m of 20x20. The book also metions some other bits which I'm not sure I need at this stage or not like 51x25x1.5 , round steel tube (19, 25, 28, & 33), seamless steel tube (25,19) , round steel bar stock (20,26,30), round steel pipe, steel sheet, steel strip, steel/aluminum pipe, aluminum sheet, aluminum capping strip. Can anyone help with a general idea what all these other bits go into and whether I should/need to buy them at the inital stage? Also any quantities would be appreciated too!
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