C8 Channel Sizes

The C8 series runs 3 sizes, from C8x18.75 at 18.75 lb/ft to C8x11.5 at 11.5 lb/ft. They share a nominal depth, so the sizes in it differ mainly in web thickness and in how far the flange reaches.

C8 sizes, heaviest first

Sizelb/ftd (in)bf (in)A (in²)Ix (in⁴)Sx (in³)Zx (in³)
C8x18.7518.7582.535.5143.91113.9
C8x13.7513.7582.344.0336.19.0211
C8x11.511.582.263.3732.58.149.63

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