M12X10 Dimensions & Weight
M12X10 is an AISC miscellaneous (M) beam with a nominal depth of 12 in, weighing 10 lb per foot — commonly used for light floor framing, mezzanines, and residential beams. It is the lightest of the 3 M12 sizes listed here.
M12X10 Dimensions
| Property | Imperial | Metric |
|---|---|---|
| Nominal depthfrom the designation | 12 in | 304.8 mm |
| Cross-section area (A)computed from weight and steel density | 2.94 in² | 19 cm² |
| Weight | 10 lb/ft | 14.9 kg/m |
Standard: AISC. Values from the published section tables; dimensions not listed here are not shown rather than estimated.
What does M12X10 weigh and cost?
M12X10 weighs 10 lb per foot. At an example material price of $0.92/lb that is about $9.20 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.
Pricing more than one size? Build a full member list in the free calculator →
Stop counting M12X10s by hand.
Upload your drawing set and SteelFlo puts a box on every steel label it finds — every M12X10, on every page — ready to review and export as a bill of materials.
Related sizes
Deeper reading: AISC Shape Database Guide · How to calculate steel weight