M12.5X12.4 Dimensions & Weight

M12.5X12.4 is an AISC miscellaneous (M) beam with a nominal depth of 12.5 in, weighing 12.4 lb per foot — commonly used for light floor framing, mezzanines, and residential beams. It is the heaviest of the 2 M12.5 sizes listed here.

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M12.5X12.4 Dimensions

PropertyImperialMetric
Nominal depthfrom the designation12.5 in317.5 mm
Cross-section area (A)computed from weight and steel density3.64 in²23.5 cm²
Weight12.4 lb/ft18.5 kg/m

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

What does M12.5X12.4 weigh and cost?

M12.5X12.4 weighs 12.4 lb per foot. At an example material price of $0.92/lb that is about $11.41 per foot. Set your quantity, length, and price to total your own run:

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Total weight
248 lbs
Material cost
$228.16

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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