S Shapes
S shapes are the original American Standard I-beam profile, characterised by a narrower flange and a steeper flange taper than modern wide-flange sections. They remain in the CISC tables for use in renovation and retrofit work matching existing structures, and occasionally in new construction where their proportions suit the application. Every S shape in the CISC 12 range is available here as a free CAD block, with full dimension and property data drawn from the CISC Structural Section Tables.
Designation
Section
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S610x180
Imperial: S24x121
S610x158
Imperial: S24x106
S610x149
Imperial: S24x100
S610x134
Imperial: S24x90
S610x119
Imperial: S24x80
S510x143
Imperial: S20x96
S510x128
Imperial: S20x86
S510x112
Imperial: S20x75
S510x98.2
Imperial: S20x66
S460x104
Imperial: S18x70
S460x81.4
Imperial: S18x54.7
S380x74
Imperial: S15x50
S380x64
Imperial: S15x42.9
S310x74
Imperial: S12x50
S310x60.7
Imperial: S12x40.8
S310x52
Imperial: S12x35
S310x47
Imperial: S12x31.8
S250x52
Imperial: S10x35
S250x38
Imperial: S10x25.4
S200x34
Imperial: S8x23
S200x27
Imperial: S8x18.4
S150x26
Imperial: S6x17.25
S150x19
Imperial: S6x12.5
S130x15
Imperial: S5x10
S100x14.1
Imperial: S4x9.5
S100x11
Imperial: S4x7.7
S75x11
Imperial: S3x7.5
S75x8
Imperial: S3x5.7
