S12X35 Dimensions & Weight

S12X35 is an AISC American Standard (S) beam with an actual depth of 12 in and a 5.1 in flange, weighing 35 lb per foot — commonly used for light floor framing, mezzanines, and residential beams.

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S12X35 Dimensions

PropertyImperialMetric
Depth (d)12 in304.8 mm
Flange width (bf)5.08 in129 mm
Cross-section area (A)10.3 in²66.5 cm²
Weight35 lb/ft52.1 kg/m

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

What does S12X35 weigh and cost?

S12X35 weighs 35 lb per foot. At an example material price of $0.92/lb that is about $32.20 per foot. Set your quantity, length, and price to total your own run:

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Total weight
700 lbs
Material cost
$644.00

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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