The W8x40 entry provides a compact dimensional reference for this W beam designation. Use the listed values to review the shape geometry, compare it with other W-shapes, and support drafting or preliminary reference work.
The source data is presented with metric dimensions and section quantities. For broader context, see related resources on steel shape nomenclature, section properties, and AISC design terminology. The downloadable DWG can also support CAD workflows, subject to project-specific 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 : 209.5 mm
Width : 205 mm
Web Thickness : 9.1 mm
Flange Thickness : 14.2 mm
Root Fillet Radius : 10 mm
Sectional Area : 75.48 cm2
Unit Weight : 59.3 kg/m
How to read the W8x40 reference
The dimensional listing identifies the overall depth and width of the section, followed by the web thickness, flange thickness, and root fillet radius. These measurements describe the physical geometry of the rolled shape and are useful when checking clearances, connection details, and drawing layouts.
The section also includes sectional area and unit weight. Sectional area is reported in square centimeters, while unit weight is reported in kilograms per meter. Keep the units consistent when using these values with material takeoffs, estimating, or engineering calculations.
Design and drafting context
The entry refers to the AISC Specification for Structural Steel Buildings, identified in the source as AISC 360-16. That reference provides the broader framework for structural steel design, fabrication, and erection in the United States; it does not replace project-specific engineering review or the requirements governing a particular structure.
For practical workflows, compare this entry with other W-shape dimensions and consult a steel section properties guide when additional geometric or strength properties are required. The included DWG file is intended as a reference resource, so confirm units, scale, layer conventions, and detailing requirements before incorporating it into construction documents.
Reference limitations
This page preserves the supplied dimensional and weight data. It does not by itself establish allowable loads, member capacity, connection adequacy, material grade, or suitability for a specific structural application. Those determinations require the applicable design criteria, verified material information, load effects, and review by a qualified engineer.
W8x40 frequently asked questions
What type of steel shape is W8x40?
W8x40 is identified in the source as a W beam designation. The entry lists its geometry, sectional area, and unit weight for reference.
What dimensions are provided for W8x40?
The reference provides depth, width, web thickness, flange thickness, and root fillet radius. The dimensional values are reported in millimeters.
What are the sectional area and unit weight of W8x40?
The source lists the sectional area in square centimeters and the unit weight in kilograms per meter. Use the values shown in the technical reference when preparing calculations or quantity reviews.
Which AISC reference is associated with this entry?
The source refers to AISC 360-16, the 2016 edition of the AISC Specification for Structural Steel Buildings.
Is a CAD file available for W8x40?
Yes. The entry includes a DWG download for W8x40. Check the file’s units, scale, and drafting conventions before using it in project documentation.
