Structural · S-D3R22

Metal Deck Floor Opening Framing and Spacing Details

Materials

Steel Composite

Elements

Beams Decks Connections / Plates Roof / Floor Openings

Connections

Shear Stud / Composite

About this detail

Framing requirements and clearance dimensions for openings in composite metal deck systems spanning perpendicular to deck flutes. Steel channel members (C6x10.5) and angle sections (L3x3x1/4) are positioned below the deck to reinforce openings where spacing dimensions 'A' and 'B' dictate framing necessity. Fillet welds (3/16 inch) attach the angle vertical legs to the deck webs and framing elements. Notes outline specific dimensional thresholds relative to hole diameters 'D1' and 'D2' that determine whether additional framing or standalone core holes are permitted.

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