The W40x331 page provides a concise reference for a W beam identified in the AISC 16 source set. It brings together the shape dimensions, section area, unit weight, and a downloadable DWG so engineers, detailers, and CAD users can review the section from both tabulated and drawing perspectives.
Use the listed properties as reference data during preliminary layout, detailing, and coordination. Final member selection, connection design, stability checks, and code compliance require review by the responsible design professional.
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 : 1036.3 mm
Width : 309.9 mm
Web Thickness : 31 mm
Flange Thickness : 54.1 mm
Root Fillet Radius : 30 mm
Sectional Area : 630.32 cm2
Unit Weight : 494.8 kg/m
How to read this W beam reference
The source identifies the member as a W beam, commonly understood as a wide-flange structural steel shape. The listed dimensions describe the overall depth and width, web and flange thicknesses, and root fillet radius. These values help users interpret the section profile when checking clearances, preparing details, or comparing shapes within a steel-shape library.
Reference properties provided
- Geometric dimensions: depth, width, web thickness, flange thickness, and root fillet radius.
- Sectional area: a cross-sectional property useful for reference and for engineering calculations performed under the applicable design method.
- Unit weight: a mass-per-length value useful for estimating member mass and coordinating handling or material quantities.
- Reference basis: the page points to the AISC Specification for Structural Steel Buildings, AISC 360-16.
Using the DWG download
The downloadable DWG can support drafting, layout, and shape-library coordination. Treat the drawing as a reference representation: confirm the applicable dimensions and project requirements against the authoritative source data before using it in fabrication or construction documents.
Related steel-reference topics
Readers comparing this section may also benefit from the site’s W-shape dimensions, structural steel section properties, AISC terminology, steel connection detailing, and CAD/DWG reference resources. Those topics provide useful context without replacing project-specific engineering checks.
Frequently asked questions
What type of section is W40x331?
W40x331 is identified on this page as a W beam, or wide-flange structural steel shape. The designation is used to locate the member in the referenced shape database.
Which standard is referenced for this shape?
The source refers to AISC 16 and identifies the AISC Specification for Structural Steel Buildings, AISC 360-16, as the reference for design, fabrication, and erection guidance.
What information is listed for W40x331?
The page lists the member’s depth, width, web thickness, flange thickness, root fillet radius, sectional area, and unit weight.
What is the DWG file used for?
The DWG provides a CAD reference for viewing and drafting coordination. Verify the drawing against the source dimensions and project requirements before relying on it for fabrication or construction.
Can these values be used directly for structural design?
The listed values are reference data. Member selection and design also depend on the governing specification, loads, unbraced conditions, connections, material requirements, and other project-specific checks by a qualified engineer.
