C12X30 Dimensions & Weight

C12X30 is an AISC American Standard channel with an actual depth of 12 in and a 3.2 in flange, weighing 30 lb per foot — commonly used for stair stringers, lintels, trimmers, and edge framing. It is the heaviest of the 3 C12 sizes listed here.

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C12X30 Dimensions

Property	Imperial	Metric
Depth (d)	12 in	304.8 mm
Flange width (bf)	3.17 in	80.5 mm
Cross-section area (A)	8.82 in²	56.9 cm²
Weight	30 lb/ft	44.6 kg/m

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

What does C12X30 weigh and cost?

C12X30 weighs 30 lb per foot. At an example material price of $0.92/lb that is about $27.60 per foot. Set your quantity, length, and price to total your own run:

QtyLength (ft)$ / lb

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Total weight

600 lbs

Material cost

$552.00

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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