Hangers for ductwork under 18 inches wide are usually made from which gauge metal?

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Multiple Choice

Hangers for ductwork under 18 inches wide are usually made from which gauge metal?

Explanation:
Hangers that support small, narrow ductwork are chosen for a balance between strength and ease of fabrication. For ducts under 18 inches wide, the weight and span aren’t very large, so a relatively thin yet stiff metal works well. 22-gauge galvanized steel is thick enough to resist bending and hold its shape, while still being easy to form into hanger straps or brackets and economical to produce. Using thicker gauges like 18- or 20-gauge adds unnecessary weight and cost for this size, and a thinner 24-gauge could deform or kink under handling or load. So 22-gauge is the practical, standard choice for hangers on small-diameter ductwork.

Hangers that support small, narrow ductwork are chosen for a balance between strength and ease of fabrication. For ducts under 18 inches wide, the weight and span aren’t very large, so a relatively thin yet stiff metal works well. 22-gauge galvanized steel is thick enough to resist bending and hold its shape, while still being easy to form into hanger straps or brackets and economical to produce. Using thicker gauges like 18- or 20-gauge adds unnecessary weight and cost for this size, and a thinner 24-gauge could deform or kink under handling or load. So 22-gauge is the practical, standard choice for hangers on small-diameter ductwork.

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