C3X5 Dimensions & Weight
C3X5 is an AISC American Standard channel with an actual depth of 3 in and a 1.5 in flange, weighing 5 lb per foot — commonly used for stair stringers, lintels, trimmers, and edge framing.
C3X5 Dimensions
| Property | Imperial | Metric |
|---|---|---|
| Depth (d) | 3 in | 76.2 mm |
| Flange width (bf) | 1.5 in | 38 mm |
| Cross-section area (A) | 1.47 in² | 9.5 cm² |
| Weight | 5 lb/ft | 7.4 kg/m |
Standard: AISC. Values from the published section tables; dimensions not listed here are not shown rather than estimated.
What does C3X5 weigh and cost?
C3X5 weighs 5 lb per foot. At an example material price of $0.92/lb that is about $4.60 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