The W40x372 is a W-shaped structural steel section identified in the source data with its principal dimensions, thicknesses, root fillet radius, sectional area, and unit weight. This reference is intended to help engineers, detailers, fabricators, and CAD users interpret the section listing before using it in a project workflow.
Use the values in the original section listing as the authoritative dimensional reference. For related terminology, see the site’s resources on W shapes, steel section properties, and steel connections and detailing.
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 : 1031.2 mm
Width : 408.9 mm
Web Thickness : 29.5 mm
Flange Thickness : 52.1 mm
Root Fillet Radius : 30 mm
Sectional Area : 709.68 cm2
Unit Weight : 557.1 kg/m
How to read the W40x372 reference
The listed depth and width describe the overall envelope of the section. Web thickness refers to the thickness of the central web, while flange thickness describes the thickness of the projecting flange elements. The root fillet radius identifies the curved transition between the web and flange, which is important when interpreting clear dimensions and preparing connection or fabrication details.
Sectional area is a cross-sectional property used in engineering calculations, while unit weight supports material takeoff and handling estimates. These values should be used together with the applicable project specifications, material requirements, connection design, and engineering checks rather than treated as a complete design basis.
AISC context and CAD use
The source refers to AISC 360-16, the AISC Specification for Structural Steel Buildings identified in the original content. That reference provides the governing specification context noted on this page; project teams should confirm which requirements apply to their design, fabrication, and erection work.
The linked DWG file can support drafting and coordination workflows. Before incorporating it into production drawings, verify units, layer conventions, insertion scale, section orientation, and compatibility with the project’s CAD standards. Pair this page with the site’s CAD and DWG reference resources and steel design guidance.
W40x372 FAQ
What is the W40x372?
W40x372 is the designation shown for a W-shaped structural steel section in the source content. The page provides its dimensions, thicknesses, root fillet radius, sectional area, and unit weight.
What do the W40x372 dimensions describe?
The listed dimensions describe the section’s overall depth and width, while the thickness entries describe the web and flanges. The root fillet radius describes the curved transition between those elements.
What is the AISC reference on this page?
The source identifies AISC 360-16, the AISC Specification for Structural Steel Buildings. It is presented as the specification context for the design, fabrication, and erection of steel structures noted in the original content.
Is a DWG file available for W40x372?
Yes. The original content includes a linked DWG download for the W40x372 section. Check the file in your CAD environment before using it in a deliverable.
Can the listed properties be used directly for structural design?
The listing is a useful reference, but structural design requires project-specific verification, applicable material and design requirements, connection checks, and review by a qualified engineer.
