Mechanical · M-X5ZHQ

Rectangular Duct Hanger Detail

Materials

Concrete Reinforced Concrete Steel Metal (misc.)

Elements

Decks Bracing Insulation Anchors / Embeds Reinforcing

Connections

Deck Attachment Embed Plate

About this detail

A rectangular duct is suspended from an overhead concrete and metal deck using steel duct support straps and rods. The upper attachment utilizes a 1/2-inch diameter Hilti KB-TZ concrete expansion anchor with a minimum 4-1/2-inch embedment, paired with a folded strap and washer. The galvanized sheet metal duct with external insulation or vent is anchored using #10 by 3/4-inch self-tapping sheet metal screws, maintaining tight contact with the duct perimeter. A companion table provides specific gauge and rod size requirements based on the maximum half of the duct perimeter and hanger spacing.

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