This is an 18 foot long steel truss for comercial and industrial roof support designed with 1" round bar stock and 4 pieces of 1/4" x 1-1/4" angle iron. It is 14 inches tall. It is pretty much an industry standard by design.
The original design I believe was from a company called Macomber in Canton, Ohio. They have been out of business for over 50 years now - driven out, when their patent ran out and they failed to automate before hand #angle #bar #commercial #industrial #roof #Steel_truss #support #zigzag
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