The W27x258 page provides a concise reference for the published dimensions and basic section data of this W beam. It also identifies the AISC 16 reference used by the source content and provides a DWG download for drafting workflows.
Use this page alongside related references on W shapes, steel section properties, and structural steel terminology. The listed values are reference data; project-specific selection, connection design, and detailing require review against the applicable design 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 : 736.6 mm
Width : 363.2 mm
Web Thickness : 24.9 mm
Flange Thickness : 45 mm
Root Fillet Radius : 20.1 mm
Sectional Area : 490.97 cm2
Unit Weight : 385.4 kg/m
How to read the W27x258 reference
The dimensional fields describe the overall beam geometry and the thickness of its principal elements. Depth and width describe the section envelope, while web thickness and flange thickness describe the main plate-like portions of the rolled shape.
The root fillet radius identifies the curved transition between the web and flange. This detail is relevant when interpreting drawings, checking clearances, or developing connection and detailing layouts.
Sectional area represents the material area through a cut perpendicular to the member length. Unit weight expresses the listed mass on a per-length basis and can support estimating and material takeoff workflows. These values should not be treated as a substitute for a complete design check.
Reference and drafting use
The source identifies AISC 360-16, the 2016 edition of the AISC Specification for Structural Steel Buildings, as its reference. The downloadable DWG can support CAD coordination and preliminary detailing, but dimensions should be checked against the authoritative local data before fabrication or issue for construction.
Related steel-shape resources
- Review the site’s W-shape dimensions references for comparable rolled beam entries.
- Use the section properties resources to understand how geometric data supports engineering calculations.
- See the steel connections and detailing references for practical drawing and coordination context.
W27x258 FAQ
What type of section is W27x258?
W27x258 is identified in the source as a W beam. The page lists its geometry, sectional area, unit weight, and root fillet radius.
Which reference is identified for this section?
The source refers to AISC 16 and identifies AISC 360-16 as the 2016 edition of the AISC Specification for Structural Steel Buildings.
What does the root fillet radius describe?
It describes the rounded transition between the web and flange of the rolled section. This feature should be considered when interpreting clear dimensions and preparing connection details.
Can the DWG file be used directly for fabrication?
The DWG is a drafting reference. Confirm the geometry, project requirements, and applicable design documentation before using it for fabrication or construction deliverables.
Where should the listed section data be used?
The published dimensions and properties can support reference, estimating, CAD coordination, and preliminary engineering workflows. Final design decisions require project-specific verification by a qualified engineer.
