The W4x13 is a W-shape steel section identified by its AISC designation. This reference page lists the section dimensions, sectional area, unit weight, and a DWG file for use in steel detailing and CAD workflows.
Use the published values as reference data for coordination, preliminary layouts, and section identification. Final member selection, connection design, stability checks, and other structural decisions require project-specific engineering verification.
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 : 105.7 mm
Width : 103.1 mm
Web Thickness : 7.1 mm
Flange Thickness : 8.8 mm
Root Fillet Radius : 6.3 mm
Sectional Area : 24.71 cm2
Unit Weight : 19.4 kg/m
How to read the W4x13 reference
The listed depth and width describe the overall envelope of the section. These dimensions help detailers and engineers coordinate the shape with framing layouts, clearances, architectural interfaces, and connection components.
Web thickness describes the thickness of the central web, while flange thickness describes the thickness of each projecting flange. Together, these dimensions help identify the shape and support checks involving web or flange geometry. The root fillet radius identifies the curved transition between the web and flange; this region matters when detailing plates, clips, coping, or other components that fit against the rolled shape.
Sectional area and unit weight
Sectional area is a geometric property used in calculations such as axial resistance and weight estimation. Unit weight expresses the mass of the steel per unit length and is useful for material takeoffs, shipping estimates, erection planning, and load-model preparation. These properties should be kept distinct from strength, stiffness, and design resistance, which depend on the applicable material specification and engineering checks.
AISC reference and CAD workflow
The source identifies AISC 360-16, the 2016 edition of the AISC Specification for Structural Steel Buildings. That reference provides requirements for the design, fabrication, and erection of steel structures in the United States; it does not replace project-specific design calculations or detailing review.
The downloadable DWG can support CAD setup and section-library coordination. Confirm the drawing units, insertion scale, layer conventions, and geometry orientation before incorporating it into a project model. For broader context, connect this page to the site’s references on W-shapes, steel section properties, AISC designations, and structural steel detailing.
W4x13 frequently asked questions
What does W4x13 mean?
W4x13 is an AISC designation for a W-shape structural steel section. The designation identifies the section family and its nominal designation; the detailed dimensions and properties are listed in the source data on this page.
What information is provided for the W4x13?
The reference provides overall depth and width, web and flange thicknesses, root fillet radius, sectional area, and unit weight. These values are useful for identifying the section and coordinating preliminary engineering or drafting work.
What is the W4x13 DWG used for?
The DWG is a CAD reference for drawing and modeling workflows. Review its units, scale, and geometry before using it in a project file, and do not treat the file as a substitute for certified fabrication or contract documents.
Does this page provide complete W4x13 design information?
No. The listed geometry and properties do not by themselves establish member capacity, connection resistance, serviceability performance, or suitability for a particular structure. Those determinations require the governing project criteria and engineering verification.
