C12X20.7 Dimensions & Weight
C12X20.7 is an AISC American Standard channel with an actual depth of 12 in and a 2.9 in flange, weighing 20.7 lb per foot — commonly used for stair stringers, lintels, trimmers, and edge framing. It is the lightest of the 3 C12 sizes listed here.
C12X20.7 Dimensions
| Property | Imperial | Metric |
|---|---|---|
| Depth (d) | 12 in | 304.8 mm |
| Flange width (bf) | 2.94 in | 74.7 mm |
| Cross-section area (A) | 6.09 in² | 39.3 cm² |
| Weight | 20.7 lb/ft | 30.8 kg/m |
Standard: AISC. Values from the published section tables; dimensions not listed here are not shown rather than estimated.
What does C12X20.7 weigh and cost?
C12X20.7 weighs 20.7 lb per foot. At an example material price of $0.92/lb that is about $19.04 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