An eighteen-gauge support angle measuring one and one-half inches by one and one-half inches by three inches attaches to the ceiling grid T-bar. An eighteen-gauge angle measuring one and one-half inches by one and one-half inches secures to the support angles using typical sheet metal screws around the pipe drop opening. Below the finished ceiling and acoustical T-bar, a ceiling collar and pipe drop cover finish the penetration assembly with dimensions verified in the field.
18 GAUGE SUPPORT ANGLE 1-1/2"x 1-1/2"x3" ATTACHED TO T-BAR PIPE DROP COVER CEILING COLLAR ACOUSTICAL T-BAR FINISHED CEILING 18 GAUGE ANGLE 1-1/2"x1-1/2" ATTACHED TO SUPPORT ANGLES 1-1/2"x 1-1/2"x 3" SUPPORT ANGLE 18 GAUGE ANGLE 1-1/2"x1-1/2" ATTACHED TO 1-1/2"x 1-1/2"x3" SUPPORT ANGLE 1" PLAN A-SECTION SCALE: 1-1/2"=1'-0" CEILING GRID T-BAR PIPE DROP OPENING SHEET METAL SCREWS (TYPICAL) A FIELD VERIFY VARIES . . 1" 1" .
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