This plan detail shows a mechanical shaft floor opening with a clear width of six feet nine inches and length of seven feet six inches, dimensioned relative to gridlines and adjacent construction. The floor opening measures four feet ten inches by four feet ten inches internally, positioned with offset dimensions of one foot ten inches and eight feet five inches from major axes. Framing and spatial clearances are designated for the mechanical shaft penetration through the structural floor assembly.
3 FL. OPNG. 4' - 10" 2' - 1" 1S2 1' - 10" FL. OPNG. 4' - 10" MECHANICAL SHAFT 8' - 5" 1' - 1" 33' - 4" 9" 7' - 6" 6' - 9" 1' - 3"
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