C8X18.75 Dimensions & Weight
C8X18.75 is an AISC American Standard channel with an actual depth of 8 in and a 2.5 in flange, weighing 18.75 lb per foot — commonly used for stair stringers, lintels, trimmers, and edge framing. It is the heaviest of the 3 C8 sizes listed here.
C8X18.75 Dimensions
| Property | Imperial | Metric |
|---|---|---|
| Depth (d) | 8 in | 203.2 mm |
| Flange width (bf) | 2.53 in | 64.2 mm |
| Cross-section area (A) | 5.51 in² | 35.5 cm² |
| Weight | 18.75 lb/ft | 27.9 kg/m |
Standard: AISC. Values from the published section tables; dimensions not listed here are not shown rather than estimated.
What does C8X18.75 weigh and cost?
C8X18.75 weighs 18.75 lb per foot. At an example material price of $0.92/lb that is about $17.25 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 C8X18.75s by hand.
Upload your drawing set and SteelFlo puts a box on every steel label it finds — every C8X18.75, 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