S3X5.7 Dimensions & Weight

S3X5.7 is an AISC American Standard (S) beam with an actual depth of 3 in and a 2.3 in flange, weighing 5.7 lb per foot — commonly used for lintels, trimmers, and light framing. It is the lightest of the 2 S3 sizes listed here.

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S3X5.7 Dimensions

Property	Imperial	Metric
Depth (d)	3 in	76.2 mm
Flange width (bf)	2.33 in	59.2 mm
Cross-section area (A)	1.67 in²	10.8 cm²
Weight	5.7 lb/ft	8.5 kg/m

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

What does S3X5.7 weigh and cost?

S3X5.7 weighs 5.7 lb per foot. At an example material price of $0.92/lb that is about $5.24 per foot. Set your quantity, length, and price to total your own run:

QtyLength (ft)$ / lb

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Total weight

114 lbs

Material cost

$104.88

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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