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AISC v16.0 Structural Shape: M318X18.5

Verified dimensions, section properties, and auto-generated CAD block download for structural engineers and detailers.

PropertyDimension / Value
DesignationM318X18.5
Shape ClassWide Flange / M-Shape (M)
Nominal Weight18.5 kg/m
Overall Depth (d)318 mm
Flange Width (bf)95.3 mm
Web Thickness (tw)3.94 mm
Flange Thickness (tf)5.79 mm
Moment of Inertia (Ix)37.2 in⁴
Plastic Section Modulus (Zx)270 in³
Download M318X18.5.dxf (CAD Block)

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