This framing plan details the structural layout for an opening in a metal deck supported by wide-flange beams. The opening is framed with C5x6.7 channel members serving as headers and trimmers, dimensioned with a maximum width of four feet and a variable opening size based on edge distance. A note specifies that if the edge distance is one foot or less and the deck is continuous over two or more wide-flange beams, the C5x6.7 channels at that edge may be omitted.
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