HSS4-1/2X4-1/2X5/16 Dimensions & Weight

HSS4-1/2X4-1/2X5/16 is a square hollow structural section, 4.5 x 4.5 in nominal outside with a 5/16 in nominal wall (0.291 in design wall per AISC), at 16.96 lb per foot — commonly specified for columns, braces, and exposed architectural steel.

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HSS4-1/2X4-1/2X5/16 Dimensions

PropertyImperialMetric
Outside depth (nominal)4.5 in114.3 mm
Outside width (nominal)4.5 in114.3 mm
Wall thickness (nominal)5/16 in (0.313)7.9 mm
Design wall thickness0.93 x nominal, per AISC for A5000.29 in7.4 mm
Cross-section area (A)computed from weight and steel density4.98 in²32.1 cm²
Weight16.96 lb/ft25.2 kg/m

Standard: AISC. Values from the published section tables; dimensions not listed here are not shown rather than estimated.

What does HSS4-1/2X4-1/2X5/16 weigh and cost?

HSS4-1/2X4-1/2X5/16 weighs 16.96 lb per foot. At an example material price of $0.92/lb that is about $15.60 per foot. Set your quantity, length, and price to total your own run:

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Total weight
339 lbs
Material cost
$312.06

Material only, example pricing. Actual steel pricing varies by region, grade, quantity, and market conditions — use your own supplier numbers for real bids.

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