Feb 27, 2022 · Steel Beam standards are available for structures with Type W18, W21, W24, W27, W30, W33, W36 or W40 beams. See page 3 for the American Steel Span color chart. Long Span Beams Long Span Trusses Portal Frames Types Most common type of long span beams used today are: Plate Girders, and Beams with Web Openings. Steel Joists & Joist Girders.
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