The W12x106 is a wide-flange structural steel beam designation used for section identification, detailing, and reference work. This page presents the dimensional and mass information associated with the shape, along with an AISC reference and a downloadable DWG file.
Use the values below as a section-reference resource when reviewing framing layouts, connection details, quantity takeoffs, or CAD drawings. Final member selection and connection design require verification for the applicable loads, support conditions, stability requirements, material specification, and project criteria.
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 : 327.7 mm
Width : 309.9 mm
Web Thickness : 15.5 mm
Flange Thickness : 25.1 mm
Root Fillet Radius : 15.2 mm
Sectional Area : 201.29 cm2
Unit Weight : 158 kg/m
How to read the W12x106 reference
The listed properties describe the overall geometry and material quantity of the section. Depth and width identify the principal outside dimensions, while web thickness and flange thickness describe the primary plate elements of the rolled shape.
The root fillet radius represents the curved transition between the web and flange. This detail matters when checking clearances, detailing connections, modeling copes, or coordinating fitted components around the inside corner of the section.
Sectional area and unit weight
Sectional area is used with material and design calculations, while the listed unit weight supports estimating, shipping, fabrication planning, and dead-load evaluation. These properties should be kept with their stated units during calculations and should not be confused with a design resistance or allowable capacity.
AISC and drafting reference
The source identifies AISC 360-16, the AISC Specification for Structural Steel Buildings, as the governing reference context for design, fabrication, and erection information. Consult the project-adopted requirements and the engineer of record when applying this section to a structural design.
The downloadable DWG can support CAD coordination and detailing workflows. Before issuing a drawing, check the file against the project’s required units, layer standards, section orientation, connection details, and revision controls. Related reference topics include W-shape terminology, steel section properties, connection detailing, and structural steel CAD standards.
Frequently asked questions
What type of section is the W12x106?
The W12x106 is identified as a W beam, also called a wide-flange structural steel section. Its reference data includes the section dimensions, root fillet radius, sectional area, and unit weight.
What does the unit weight describe?
The unit weight indicates the amount of steel associated with a unit length of the section. It is useful for estimating and dead-load work, but it is not a member capacity or a substitute for design verification.
Why is the root fillet radius important?
The root fillet is the curved transition between the web and flange. Its geometry can affect connection fit-up, clearance checks, coping, and detailed CAD representations.
Can the DWG file be used directly for fabrication?
The DWG is a drafting reference and should be reviewed before fabrication use. Confirm the drawing’s units, orientation, project standards, connection detailing, and approval status before issuing fabrication information.
Does the listed AISC reference complete the design requirements?
No. The cited AISC reference provides the specification context, but the applicable project requirements, loads, material information, stability checks, connections, and professional engineering review must still be addressed.
