Sleeves and conduits passing through concrete slabs or walls require specific spacing and size limitations to maintain structural integrity. The maximum diameter of a sleeve or conduit is restricted to one-third of the slab or wall thickness or two inches, whichever is smaller, with additional restrictions applicable for post-tensioned slabs. Clear distances between sleeves must measure a minimum of three times the diameter or four inches. Areas where required clear spacing between sleeves is unachievable are treated as structural openings per the multiple openings detail.
CONDUIT IN SLAB OR WALL NOTE: WHERE CLEAR DISTANCE BETWEEN SLEEVES THRU SLAB OR WALL IS IMPOSSIBLE, THIS AREA SHALL BE TREATED AS AN OPENING PER "MULTIPLE OPENINGS IN SLAB" DETAIL. NOTE: MAX "D" IN SLAB OR WALL = T/3 OR 2", WHICHEVER IS SMALLER. FOR PT SLABS, SEE "TYPICAL PT SLAB REINFORCING - LAYOUT" FOR ADD'L RESTRICTIONS SLEEVE DIA "D" (SEE NOTE BELOW) 3D OR 4" MIN WALL THK) "T" (SLAB OR WALL THK) "T" (SLAB OR "D" 3D CL SLAB OR WALL AND CONDUIT PIPING THRU SLAB OR WALL
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