The W27x539 is a W-shaped structural steel section identified by its overall dimensions, web and flange thicknesses, root fillet radius, sectional area, and unit weight. This page provides a concise reference for engineers, detailers, fabricators, and CAD users working with W-shape terminology and section data.
Use the source values below as the controlling reference for this page. For design work, confirm the applicable project requirements, material specification, connection details, and governing engineering checks rather than relying on the designation alone.
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 : 825.5 mm
Width : 388.6 mm
Web Thickness : 50 mm
Flange Thickness : 89.9 mm
Root Fillet Radius : 20.1 mm
Sectional Area : 1025.8 cm2
Unit Weight : 805.3 kg/m
How to read the W27x539 data
The listed depth and width describe the overall envelope of the section. The web thickness refers to the central plate connecting the flanges, while the flange thickness describes the thickness of the top and bottom flange elements. These dimensions are useful for layout, clearance checks, detailing, and coordination with connected members.
The root fillet radius identifies the curved transition between the web and each flange. This region matters when checking fit-up, detailing copes or seats, and interpreting CAD geometry. It should not be treated as a sharp inside corner when preparing fabrication or connection details.
Sectional area supports calculations involving material quantity and member mass, while unit weight is useful for estimating shipping, handling, and supported dead load. These values should be used together with the complete design specification and project assumptions.
Reference and drafting considerations
The source identifies AISC 360-16 as the governing AISC specification reference. The downloadable DWG file can help users review the section profile in CAD. Before using the drawing in a project, check its units, layer conventions, insertion scale, and compatibility with the project’s drafting standards.
For related research, compare this page with other W-shape dimensions, steel section properties, and structural steel connection detailing references. Those topics help place the W27x539 in the broader context of member selection and drawing coordination without replacing project-specific engineering review.
W27x539 frequently asked questions
What does W27x539 identify?
W27x539 is the designation for a W-shaped structural steel section. The source data on this page provides its listed geometric dimensions, sectional area, and unit weight.
What do the web and flange thicknesses describe?
The web thickness describes the central connecting element of the section. The flange thickness describes the top and bottom flange elements that extend across the section width.
Why is the root fillet radius important?
The root fillet radius represents the rounded transition between the web and flanges. It is relevant when coordinating connection details, clearances, copes, and CAD geometry.
Is the W27x539 automatically suitable for a structural design?
No. Section designation and tabulated properties do not establish design suitability by themselves. Member strength, stability, serviceability, connections, material requirements, and project loads require engineering verification.
Is a CAD file available for the W27x539?
Yes. The source includes a DWG download for the W27x539. Review the file’s units and drafting conventions before incorporating it into project documentation.











