Secondary structural framing mentions to purlins, girts, eave struts, wind bracing, flange bracing, base angles, clips and other various structural parts. Purlins, girts and eave struts are cold formed steel members which have a minimum yield strength of 345 MPa (50,000 psi) and will conform to the physical specifications of ASTM 572 (Grade 50) or ASTM A653 (Grade 50) or equivalent.

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