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  Top of Steel Elevations in Structural Drawings: TOS, BOS, Slopes, and Camber

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  Bolt Layout Terminology in Steel Detailing: Gage, Pitch, Edge Distance, and End Distance

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  HSS Corner Radii and Flat Width: Practical Guidance for Detailing and CAD

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  Steel Section Property Units: How to Read and Convert A, I, S, Z, r, J, and Cw

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  Steel Angle Terminology: Legs, Toes, Heel, Fillet, and Orientation

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  Work Points, Member Centerlines, and Setbacks in Structural Steel Detailing

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  Structural Tee (WT) Shapes: Designations, Orientation, and Detailing Geometry

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  Principal Axes of Steel Angles: How to Read and Use Rotated Section Properties

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  Gross Area vs. Net Area in Structural Steel Members

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  Steel Shape k Dimensions: Rolled Fillets, Detailing Clearance, and CAD Geometry

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  Shear Center vs. Centroid in Structural Steel Shapes

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  Torsional Constant J and Warping Constant Cw in Steel Shape Tables