The W18x143 is a W-shape steel section reference for engineers, detailers, fabricators, and students working with structural steel documentation. This page presents the locally authoritative dimensions and section data together with an AISC context and a DWG resource.
Use the listed properties when checking drawings, comparing steel shapes, or coordinating design and detailing information. The designation identifies a specific shape entry; its actual dimensions and properties should be taken from the reference data below rather than estimated from the name.
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 : 495.3 mm
Width : 284.5 mm
Web Thickness : 18.5 mm
Flange Thickness : 33.5 mm
Root Fillet Radius : 10.2 mm
Sectional Area : 270.97 cm2
Unit Weight : 212.7 kg/m
How to read the W18x143 reference
The source identifies this member as a W Beam. Its depth and width describe the overall section envelope, while web thickness and flange thickness describe the principal plate elements of the rolled shape. The root fillet radius represents the curved transition between the web and flange.
The reported sectional area and unit weight are useful for interpreting material quantity and for coordinating weight information between design documents, estimating, fabrication, and erection planning. They do not by themselves replace the strength, stability, connection, serviceability, or specification checks required for a particular project.
AISC context and drafting resource
The page refers to the American Institute of Steel Construction Specification for Structural Steel Buildings, identified in the source as AISC 360-16 and the 2016 edition. Treat that reference as design and construction context, while using the project-adopted requirements and the engineer of record’s direction for final decisions.
The downloadable DWG can support CAD coordination and detailing workflows. Before using it in production drawings, confirm units, layer conventions, insertion orientation, and compatibility with the project’s drawing standards. Related SteelSTD references for W-shape dimensions, section properties, steel terminology, and connection detailing can help provide broader context without replacing project-specific verification.
Practical verification points
- Compare the section dimensions with the current source data before placing the shape in a drawing or model.
- Keep dimensional properties separate from design resistance and connection design results.
- Confirm material, specification, fabrication, and erection requirements from the project documents.
- Coordinate the DWG geometry with the approved structural model and fabrication details.
Frequently asked questions
What type of section is the W18x143?
It is identified in the source as a W Beam, commonly used as a wide-flange structural steel shape reference.
What are the listed dimensions of the W18x143?
The source lists a depth of 495.3 mm, a width of 284.5 mm, a web thickness of 18.5 mm, a flange thickness of 33.5 mm, and a root fillet radius of 10.2 mm.
What sectional area and unit weight are provided?
The listed sectional area is 270.97 cm2, and the listed unit weight is 212.7 kg/m. Use these values as the local reference data for this page.
What does the AISC reference mean on this page?
The source refers to AISC 360-16, the 2016 edition of the AISC Specification for Structural Steel Buildings. It provides context for structural steel design, fabrication, and erection requirements in the United States.
Is a DWG file available for the W18x143?
Yes. The page includes a downloadable DWG resource named W18x143.dwg. Review the file in the context of the project’s CAD and detailing standards before production use.
Can the listed properties alone be used to approve a structural design?
No. The dimensions, sectional area, and unit weight are reference data. Final design decisions require the applicable project requirements and engineering checks for the member, connections, stability, serviceability, fabrication, and erection.
