The UB 203x133x30 is a Universal Beam profile listed with dimensional and sectional data referenced to EN 10365:2017. Use this page as a quick reference when checking steel shape schedules, preparing drawings, or coordinating structural steel information.
The source data below provides the profile dimensions, sectional area, unit weight, and root fillet radius. Keep the listed values together when transferring the section into a design note, fabrication document, CAD library, or comparison with another Universal Beam designation.
UB 203x133x30
Universal Beams
refer to : EN 10365:2017
a European standard that defines the dimensions, tolerances, and sectional properties for hot-rolled steel channels, I-beams, and H-beams used in construction and engineering. It ensures uniformity and compatibility across European structural steel products.
Dimension : 206.8×133.9×6.4×9.6
Depth : 206.8 mm
Width : 133.9 mm
Web Thickness : 6.4 mm
Flange Thickness : 9.6 mm
Root Fillet Radius : 8 mm
Sectional Area : 38.2 cm2
Unit Weight : 30 kg/m
How to read the UB 203x133x30 reference
The designation identifies a Universal Beam section, while the dimensional line gives the listed overall depth, width, web thickness, and flange thickness. These dimensions describe the section geometry; they are not a substitute for a material grade, connection design, load analysis, or member resistance check.
The sectional area is useful when reviewing quantities and when carrying out calculations that require the steel area. The unit weight supports material takeoffs and drawing coordination. The root fillet radius is part of the rolled profile geometry and should be considered when detailing plates, fittings, copes, or interfaces close to the flange-to-web transition.
Using this section in design and drafting workflows
- Check the section designation and dimensional data against the project steel schedule before placing it in a drawing or model.
- Use the stated unit weight for preliminary quantity coordination, while confirming project requirements through the governing design and fabrication documents.
- Account for the rolled root fillet when developing connection details or checking clearances around the web and flanges.
- Use the linked DWG resource for drafting support, then verify orientation, units, and project-specific detailing requirements before issue.
EN 10365:2017 is identified in the source as the reference for the section dimensions, tolerances, and sectional properties. Additional checks are required if the beam is being selected for a particular span, load case, connection, fire condition, or material specification.
Frequently asked questions
What does UB 203x133x30 mean?
It is the designation for a Universal Beam profile. The source also provides the section’s listed dimensions, sectional area, unit weight, and root fillet radius.
What standard is referenced for this beam?
The page references EN 10365:2017 for the dimensional and sectional information presented for the Universal Beam.
Does the designation alone define the steel grade?
No. The designation identifies the section geometry and nominal product reference. A project must separately establish the required material specification and design checks.
Can the DWG file be used directly for fabrication?
The DWG is a drafting reference. Confirm units, section orientation, tolerances, connection details, and project approval requirements before using it in fabrication documentation.
Why is the root fillet radius important?
The root fillet is part of the rolled geometry where the web and flange transition. It can affect local clearances and the detailing of plates, fittings, copes, and connections.
