The W12x279 reference provides the listed metric dimensions and basic section data for this W beam, together with an AISC 16 context and a downloadable DWG file. Use the values below as a reference when reviewing steel shape layouts, drawings, and preliminary detailing information.
This page is also a useful starting point for related topics such as W-shape terminology, steel section properties, connection detailing, and CAD/DWG resources. The listed properties should be checked against the project’s governing design requirements before they are used for engineering decisions.
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 : 403.9 mm
Width : 332.7 mm
Web Thickness : 38.9 mm
Flange Thickness : 62.7 mm
Root Fillet Radius : 15.2 mm
Sectional Area : 528.39 cm2
Unit Weight : 414.8 kg/m
How to read the W12x279 reference
The source identifies this member as a W beam and reports its overall depth, flange width, web thickness, flange thickness, and root fillet radius. These geometric values describe the section profile and are useful when checking clearances, alignment, detailing space, and compatibility with connected members.
Section properties and unit weight
The sectional area describes the amount of steel in the cross-section and is commonly used with other material and design information when evaluating a member. The listed unit weight helps estimate steel quantities and support material takeoffs. Neither value, by itself, establishes allowable strength, deflection performance, or suitability for a particular structural application.
Using the DWG reference
The downloadable DWG can support drafting and geometry review. Before incorporating it into a design package, confirm the drawing scale, units, layer conventions, and required project detailing practices. Related SteelSTD resources on CAD blocks, section dimensions, and steel connections can provide useful workflow context.
AISC context
The page refers to the American Institute of Steel Construction Specification for Structural Steel Buildings, identified in the source as AISC 360-16. The specification context does not replace project-specific checks for loads, stability, material requirements, connections, fabrication, erection, or applicable code provisions.
Frequently asked questions
What information is provided for W12x279?
The reference lists the beam depth, width, web thickness, flange thickness, root fillet radius, sectional area, and unit weight. It also provides AISC 16 context and a DWG download.
Can the listed dimensions be used to design a beam?
The dimensions are useful for identification, coordination, and preliminary detailing, but they are not a complete design check. Structural design requires project-specific evaluation of loads, span conditions, stability, material specifications, connections, and applicable requirements.
What is the purpose of the root fillet radius?
The root fillet is the curved transition between the web and flange. Its geometry can affect detailing clearances, connection fit-up, and how the section is represented in drawings or CAD models.
What is the DWG file useful for?
The DWG file can help with drafting, layout coordination, and visual review of the section profile. Verify units, scale, and geometry before using the file in project documentation.
