The W18x50 is a wide-flange structural steel beam reference with dimensional and weight data for design review, drafting, estimating, and detailing workflows. This page presents the source dimensions together with an AISC 360-16 reference and a downloadable DWG resource.
Use the listed values to coordinate steel shape selection and drawings, while confirming design resistance, stability, connection behavior, material specification, and fabrication requirements through the applicable project criteria and 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 : 457.2 mm
Width : 190.5 mm
Web Thickness : 9 mm
Flange Thickness : 14.5 mm
Root Fillet Radius : 10.2 mm
Sectional Area : 94.84 cm2
Unit Weight : 74.4 kg/m
How to read the W18x50 reference
The source content identifies the shape as a W beam and reports its overall depth, flange width, web thickness, flange thickness, root fillet radius, sectional area, and unit weight. These properties describe the section geometry and its amount of steel; they are not, by themselves, a complete structural design check.
Why each property matters
- Depth and width: help coordinate the beam with framing layouts, clearances, floor depths, and connection geometry.
- Web and flange thickness: support checks related to local slenderness, shear behavior, bearing, welding, and connection detailing.
- Root fillet radius: is important when detailing plates, copes, seats, and other components that must fit around the rolled shape.
- Sectional area and unit weight: support material takeoffs, fabrication coordination, shipping estimates, and preliminary gravity-load calculations.
Design and drafting context
The page references the American Institute of Steel Construction Specification for Structural Steel Buildings, AISC 360-16. That reference provides the broader framework for steel design, fabrication, and erection, but the applicable project documents must still establish the material, loads, limit states, connection requirements, and detailing assumptions.
For CAD coordination, the linked DWG file can help place the section profile in drawings or models. Check the downloaded geometry against the authoritative dimensions on this page before using it for fabrication or final detailing. Related reference topics include W-shape dimensions, steel section properties, structural steel connections, and steel drafting standards.
W18x50 FAQ
What type of section is W18x50?
W18x50 is identified here as a W beam, commonly called a wide-flange beam. The page provides its dimensional and section-property reference data.
What information is listed for W18x50?
The reference lists depth, width, web thickness, flange thickness, root fillet radius, sectional area, and unit weight. These values should be read together when coordinating the shape with framing and detailing requirements.
What is the AISC reference on this page?
The page refers to AISC 360-16, the AISC Specification for Structural Steel Buildings identified in the source content. Project-specific design checks may require additional specifications and criteria.
Is a DWG file available for W18x50?
Yes. The source content provides a DWG download reference for the W18x50 profile. Verify the CAD geometry against the listed source dimensions before relying on it for fabrication or final construction documents.
Can the listed properties alone be used to design a beam?
No. Section geometry and weight are only part of a design evaluation. Loads, span conditions, bracing, material requirements, limit states, connections, serviceability, and applicable project criteria must also be reviewed by a qualified engineer.
