M12X11.8 Dimensions & Weight

M12X11.8 is an AISC miscellaneous (M) beam with a nominal depth of 12 in, weighing 11.8 lb per foot — commonly used for light floor framing, mezzanines, and residential beams. It is the heaviest of the 3 M12 sizes listed here.

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M12X11.8 Dimensions

Property	Imperial	Metric
Nominal depthfrom the designation	12 in	304.8 mm
Cross-section area (A)computed from weight and steel density	3.47 in²	22.4 cm²
Weight	11.8 lb/ft	17.6 kg/m

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

What does M12X11.8 weigh and cost?

M12X11.8 weighs 11.8 lb per foot. At an example material price of $0.92/lb that is about $10.86 per foot. Set your quantity, length, and price to total your own run:

QtyLength (ft)$ / lb

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Total weight

236 lbs

Material cost

$217.12

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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