M4X6 Dimensions & Weight

M4X6 is an AISC miscellaneous (M) beam with a nominal depth of 4 in, weighing 6 lb per foot — commonly used for lintels, trimmers, and light framing. It is the heaviest of the 4 M4 sizes listed here.

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M4X6 Dimensions

Property	Imperial	Metric
Nominal depthfrom the designation	4 in	101.6 mm
Cross-section area (A)computed from weight and steel density	1.76 in²	11.4 cm²
Weight	6 lb/ft	8.9 kg/m

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

What does M4X6 weigh and cost?

M4X6 weighs 6 lb per foot. At an example material price of $0.92/lb that is about $5.52 per foot. Set your quantity, length, and price to total your own run:

QtyLength (ft)$ / lb

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Total weight

120 lbs

Material cost

$110.40

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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