The W44x408 is a wide-flange steel beam designation used in structural steel reference work. This page preserves the listed AISC-based dimensions and section data so engineers, detailers, fabricators, and estimators can review the shape consistently.
Use the dimensional information below together with the project’s governing design criteria, material specifications, connection details, and engineering checks. For related terminology, see the site’s guides to W-shape designations, steel section properties, and structural steel detailing.
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 : 1137.9 mm
Width : 408.9 mm
Web Thickness : 31 mm
Flange Thickness : 55.1 mm
Root Fillet Radius : 20.1 mm
Sectional Area : 774.19 cm2
Unit Weight : 607.7 kg/m
How to read the W44x408 reference
The W identifies a wide-flange structural shape. The complete designation distinguishes this section from other W shapes, while the listed dimensions provide the information needed for shape comparison, detailing, takeoff, and design-office reference. Always use the full designation when communicating about the member.
Key dimensional terms
- Depth: the overall outside-to-outside depth of the rolled section.
- Width: the overall flange width.
- Web thickness: the thickness of the central web, which separates the flanges.
- Flange thickness: the thickness of each flange in the listed section data.
- Root fillet radius: the curved transition between the web and flange. This region matters when checking clearances, detailing connections, and interpreting rolled-shape geometry.
Section data and practical use
Sectional area describes the material area through a cut perpendicular to the member’s longitudinal axis. It supports quantity calculations and forms part of the section-property information used in structural analysis. Unit weight is reported as mass per unit length in the source data and is useful for estimating member mass, handling requirements, and framing loads. Design teams should apply the appropriate project conventions when converting or using that information.
The accompanying DWG download can support drafting and layout workflows. CAD geometry should be checked against the authoritative project requirements before it is used for fabrication, connection detailing, or final issue. For broader workflow guidance, link this page to the site’s DWG and CAD reference resources and steel connection detailing guide.
W44x408 frequently asked questions
What type of steel shape is W44x408?
W44x408 is a wide-flange, or W-shape, structural steel beam designation. The listed dimensions and section data identify the specific shape shown on this page.
What does the unit weight represent?
The source lists unit weight in kilograms per metre. In practical use, this value represents the member’s mass per unit length and can support estimating, handling, and load calculations when used with the project’s applicable conventions.
Why is the root fillet radius important?
The root fillet is the curved transition between the web and flange. It can affect connection fit-up, detailing clearances, coping, and how accurately the rolled shape is represented in CAD.
Can the downloaded DWG be used for final fabrication?
The DWG is a drafting reference. Verify its geometry, units, tolerances, connection requirements, and project-specific details before using it for fabrication or issuing construction documents.
Is the listed section automatically suitable for a structural design?
No. Section selection requires engineering verification for the applicable loads, spans, support conditions, stability requirements, material specification, connections, and governing design criteria.
