C3X3.5 Dimensions & Weight
C3X3.5 is an AISC American Standard channel with a nominal depth of 3 in, weighing 3.5 lb per foot — commonly used for stair stringers, lintels, trimmers, and edge framing. It is the lightest of the 4 C3 sizes listed here.
C3X3.5 Dimensions
| Property | Imperial | Metric |
|---|---|---|
| Nominal depthfrom the designation | 3 in | 76.2 mm |
| Cross-section area (A)computed from weight and steel density | 1.03 in² | 6.6 cm² |
| Weight | 3.5 lb/ft | 5.2 kg/m |
Standard: AISC. Values from the published section tables; dimensions not listed here are not shown rather than estimated.
What does C3X3.5 weigh and cost?
C3X3.5 weighs 3.5 lb per foot. At an example material price of $0.92/lb that is about $3.22 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