The W40x199 is a wide-flange structural steel shape identified in the AISC 16 reference. This page presents the source dimensions and basic section data for engineers, detailers, fabricators, and CAD users.
Use the listed values as a reference when reviewing drawings or coordinating steel framing information. Design, connection selection, fabrication, and erection decisions require the applicable project criteria and engineering verification.
W Beam
refer to : AISC 16
the American Institute of Steel Construction (AISC) Specification for Structural Steel Buildings (AISC 360-16), which is the 2016 edition of the AISC Specification for Structural Steel Buildings. It provides guidelines and requirements for the design, fabrication, and erection of steel structures in the United States.
Depth : 983 mm
Width : 401.3 mm
Web Thickness : 16.5 mm
Flange Thickness : 27.2 mm
Root Fillet Radius : 30 mm
Sectional Area : 379.35 cm2
Unit Weight : 297.8 kg/m
How to read the W40x199 reference
The source data describes the overall envelope and principal geometric features of the shape. Depth and width describe the section’s overall size, while web thickness and flange thickness describe the primary plate-like elements that form the W shape.
The root fillet radius represents the curved transition between the web and flange. This detail is important when reviewing clearances, copes, connections, and CAD geometry rather than treating the section as a group of sharp-cornered rectangles.
Sectional area and unit weight
Sectional area is the steel area represented by a cut through the member. It is useful when reviewing section properties and material quantities. Unit weight expresses the member’s mass per unit length and supports estimating, shipping, handling, and framing coordination.
Reference and CAD use
The source identifies AISC 360-16, also described as AISC 16, as the referenced specification for structural steel buildings. Treat the values on this page as a section-reference resource, and consult the applicable project documents before using them in design or detailing.
The supplied DWG download can support drafting and model coordination. Check the downloaded geometry against the project’s required section reference, connection details, coatings, and fabrication instructions. Related internal resources could include the W-shapes overview, steel section properties guide, AISC terminology reference, and structural steel DWG library.
Frequently asked questions
What is the W40x199?
It is a W, or wide-flange, structural steel shape identified by the W40x199 designation in the supplied AISC 16 reference.
Which dimensions are provided for this shape?
The source lists overall depth, overall width, web thickness, flange thickness, and root fillet radius. It also provides sectional area and unit weight.
What does the root fillet radius describe?
It describes the curved transition where the web meets the flange. This geometry can affect detailing, clearances, connection layouts, and CAD representation.
Is the DWG file suitable for structural design by itself?
No. A DWG is a drafting and coordination resource, not a substitute for engineering calculations, project specifications, connection design, or fabrication review.
What reference is identified on this page?
The source identifies the American Institute of Steel Construction specification for structural steel buildings, referred to here as AISC 16 and AISC 360-16.
