MC18X51.9 Dimensions & Weight

MC18X51.9 is an AISC miscellaneous channel with an actual depth of 18 in and a 4.1 in flange, weighing 51.9 lb per foot — commonly used for stair stringers, lintels, trimmers, and edge framing.

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MC18X51.9 Dimensions

Property	Imperial	Metric
Depth (d)	18 in	457.2 mm
Flange width (bf)	4.1 in	104.1 mm
Cross-section area (A)	15.3 in²	98.7 cm²
Weight	51.9 lb/ft	77.2 kg/m

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

What does MC18X51.9 weigh and cost?

MC18X51.9 weighs 51.9 lb per foot. At an example material price of $0.92/lb that is about $47.75 per foot. Set your quantity, length, and price to total your own run:

QtyLength (ft)$ / lb

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Total weight

1,038 lbs

Material cost

$954.96

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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