The W21x201 is a wide-flange structural steel shape identified by its nominal designation. This reference summarizes the source-listed geometry, sectional area, unit weight, and CAD download associated with the shape.
Use the dimensions below when reviewing drawings, comparing section selections, or coordinating steel framing details. The listed values are reference data and should be checked against the governing project documents and design requirements before use.
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 : 584.2 mm
Width : 320 mm
Web Thickness : 23.1 mm
Flange Thickness : 41.4 mm
Root Fillet Radius : 12.7 mm
Sectional Area : 382.58 cm2
Unit Weight : 300.3 kg/m
How to read the W21x201 reference
The designation W21x201 identifies a W-shape in the source data. The dimensional entries describe the overall depth and width, along with the web, flange, and root-fillet geometry. These details are useful when checking framing clearances, connection layouts, copes, openings, and drafting representations.
The source identifies the reference as AISC 360-16, the 2016 edition of the AISC Specification for Structural Steel Buildings. That specification provides requirements related to the design, fabrication, and erection of steel structures in the United States. The specification reference does not replace project-specific engineering review or the applicable contract documents.
Geometry and quantity coordination
The listed sectional area supports steel quantity and section-property coordination, while the listed unit weight provides a lineal quantity reference for estimating and material handling. Use the source values consistently with the unit system shown in the table and confirm any required conversions before incorporating them into project calculations.
DWG reference
A DWG file is provided with this entry for drafting and coordination. Treat downloaded geometry as reference content: verify scale, units, orientation, layer conventions, and the project’s required detailing practices before using it in production documents.
Related reference topics
- W-shape terminology and designation conventions
- Steel section dimensions and section properties
- AISC design and detailing references
- Structural steel connections and framing details
- CAD and DWG resources for steel sections
Frequently asked questions
What is the W21x201?
W21x201 is the designation of the W-shape listed on this page. The source content provides its dimensions, sectional area, unit weight, AISC reference, and DWG download.
What does the AISC 16 reference mean?
It refers to AISC 360-16, the 2016 edition of the AISC Specification for Structural Steel Buildings. It is identified here as the governing reference context for the published shape information.
What dimensions are listed for this shape?
The reference lists depth, width, web thickness, flange thickness, and root fillet radius. Review those entries together when checking clearances or coordinating steel details.
Can the DWG be used directly for fabrication?
The DWG is a drafting reference and should not be treated as a fabrication-ready document without checking units, scale, detailing requirements, and project-specific engineering information.
Does the listed unit weight replace design calculations?
No. The listed unit weight is useful for quantity and coordination work, but member selection and structural design require project-specific engineering verification.
