The W12x26 is a W-shape steel section reference for engineers, detailers, fabricators, and CAD users working with structural steel. This page presents the source dimensions and section data together with a downloadable DWG resource.
Use the listed values as a reference when reviewing framing layouts, connection details, section schedules, and structural steel drawings. Final member selection and design checks must be completed by a qualified engineer using the applicable project requirements.
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 : 309.9 mm
Width : 164.8 mm
Web Thickness : 5.8 mm
Flange Thickness : 9.7 mm
Root Fillet Radius : 7.6 mm
Sectional Area : 49.35 cm2
Unit Weight : 38.7 kg/m
How to read the W12x26 reference
The designation identifies a W-shape, commonly described as a wide-flange section. The page’s dimensional data describes the overall depth and width, while the web and flange thicknesses describe the primary plate elements that form the section.
What the listed properties mean
Depth and width describe the overall envelope of the section. Web thickness refers to the central vertical element, and flange thickness refers to the horizontal elements at the top and bottom. The root fillet radius describes the curved transition between the web and flange, which is important when interpreting profiles and preparing connection or detailing information.
Sectional area is the cross-sectional steel area used in material and structural calculations. Unit weight describes the mass of the section per unit length and can support estimating, handling, and drafting coordination tasks. These values should be used with the governing project specification and verified against the controlling steel-shape reference before fabrication.
Using the DWG resource
The downloadable DWG can help CAD users place the W12x26 profile in framing plans, typical details, and section drawings. Check units, drawing scale, layer conventions, and project drafting standards after importing the file. The profile geometry should not be treated as a substitute for connection design, member verification, or fabrication drawings.
Related steel reference topics
For broader study, pair this page with references covering W-shape terminology, structural steel section properties, AISC design concepts, steel connections, and CAD detailing practices. These topics help connect the tabulated profile data with practical design and documentation workflows.
W12x26 frequently asked questions
What type of section is the W12x26?
The W12x26 is identified as a W beam, also called a wide-flange structural steel section.
What dimensions are provided for the W12x26?
The reference lists depth, width, web thickness, flange thickness, and root fillet radius, along with sectional area and unit weight.
Which specification is referenced on this page?
The source references the American Institute of Steel Construction Specification for Structural Steel Buildings, identified in the source as AISC 360-16.
Can the DWG be used directly for structural design?
The DWG is a drafting resource for representing the section profile. It does not replace member design, connection design, project-specific verification, or fabrication documentation.
Should the listed values be checked before fabrication?
Yes. Confirm the applicable project requirements and the controlling steel-shape reference before ordering, fabrication, or construction.












