S6X12.5 Dimensions & Weight

S6X12.5 is an AISC American Standard (S) beam with an actual depth of 6 in and a 3.3 in flange, weighing 12.5 lb per foot — commonly used for lintels, trimmers, and light framing. It is the lightest of the 2 S6 sizes listed here.

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S6X12.5 Dimensions

Property	Imperial	Metric
Depth (d)	6 in	152.4 mm
Flange width (bf)	3.33 in	84.6 mm
Cross-section area (A)	3.67 in²	23.7 cm²
Weight	12.5 lb/ft	18.6 kg/m

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

What does S6X12.5 weigh and cost?

S6X12.5 weighs 12.5 lb per foot. At an example material price of $0.92/lb that is about $11.50 per foot. Set your quantity, length, and price to total your own run:

QtyLength (ft)$ / lb

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Total weight

250 lbs

Material cost

$230.00

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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