The W21x248 is a W-shape steel beam reference used to identify a rolled wide-flange section and its published geometric data. This page brings together the section dimensions, sectional area, unit weight, and a DWG resource so engineers, detailers, and students can consult the same reference while reviewing drawings or preliminary layouts.
Use the listed values as the authoritative local data for this page. Final member selection, connection detailing, stability checks, and other design decisions require the applicable project criteria and verification by a qualified engineer.
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 : 602 mm
Width : 325.1 mm
Web Thickness : 27.9 mm
Flange Thickness : 50.5 mm
Root Fillet Radius : 30 mm
Sectional Area : 476.13 cm2
Unit Weight : 373.8 kg/m
How to read the W21x248 reference
The source data identifies this member as a W beam and places it in the AISC 360-16 reference context. The listed dimensions describe the overall depth and flange width, together with the web thickness, flange thickness, and root fillet radius. These terms are useful when checking clearances, modeling the section, coordinating connections, or comparing related W shapes.
Sectional area and unit weight
Sectional area describes the steel area of the member’s cross-section. It is a foundational geometric property for calculations involving axial force, material quantity, and other engineering checks. Unit weight expresses the member’s mass per unit length and is useful for estimating handling, shipping, and supported dead load. Neither value alone establishes whether a member is adequate for a particular application.
Using the DWG download
The downloadable DWG can support drafting and CAD coordination. Confirm the drawing units, insertion settings, layer conventions, and project-specific detailing requirements before incorporating the file into a production drawing. For broader reference, related pages on W-shape dimensions, steel section properties, structural steel terminology, and DWG resources can help explain how this section fits into the wider shape library.
W21x248 FAQ
What does W21x248 mean?
It is the designation for a W-shape steel beam. The designation identifies the section within the shape series; the page’s source data supplies the corresponding dimensions and properties.
What information is listed for this section?
The reference lists depth, width, web thickness, flange thickness, root fillet radius, sectional area, and unit weight. These values describe the section and support preliminary reference, drafting, and coordination work.
What is the AISC reference noted on this page?
The source refers to the American Institute of Steel Construction Specification for Structural Steel Buildings, AISC 360-16. It provides the design, fabrication, and erection context identified in the original content.
Can the DWG be used directly for structural design?
A DWG is a drafting resource, not a substitute for engineering design. Check the file and project requirements, then verify member behavior, connections, stability, and detailing under the applicable criteria.
