M10X9 Dimensions & Weight
M10X9 is an AISC miscellaneous (M) beam with a nominal depth of 10 in, weighing 9 lb per foot — commonly used for light floor framing, mezzanines, and residential beams. It is the heaviest of the 3 M10 sizes listed here.
M10X9 Dimensions
| Property | Imperial | Metric |
|---|---|---|
| Nominal depthfrom the designation | 10 in | 254 mm |
| Cross-section area (A)computed from weight and steel density | 2.64 in² | 17 cm² |
| Weight | 9 lb/ft | 13.4 kg/m |
Standard: AISC. Values from the published section tables; dimensions not listed here are not shown rather than estimated.
What does M10X9 weigh and cost?
M10X9 weighs 9 lb per foot. At an example material price of $0.92/lb that is about $8.28 per foot. Set your quantity, length, and price to total your own run:
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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Related sizes
Deeper reading: AISC Shape Database Guide · How to calculate steel weight