The UB 305x127x37 is a Universal Beam profile reference for engineers, detailers, fabricators, and students working with structural steel documentation. This page brings together the profile designation, listed geometry, sectional area, unit weight, and a CAD download in one place.
Use the data below as a reference when reviewing drawings, comparing steel section terminology, or checking that a selected profile matches project documentation. For design decisions, confirm the governing project specification, material requirements, connection details, and engineering calculations.
UB 305x127x37
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 : 304.4×123.4×7.1×10.7
Depth : 304.4 mm
Width : 123.4 mm
Web Thickness : 7.1 mm
Flange Thickness : 10.7 mm
Root Fillet Radius : 8.9 mm
Sectional Area : 47.2 cm2
Unit Weight : 37.1 kg/m
How to read this UB reference
The profile designation identifies the section listed on this page, while the dimensional entries describe its overall depth, width, web thickness, flange thickness, and root fillet radius. These terms are useful when interpreting fabrication drawings, section schedules, and structural steel details.
The listed sectional area and unit weight provide additional reference information for quantity review and member documentation. They should be read together with the applicable design checks rather than treated as a substitute for engineering verification.
Standard and drafting reference
This page identifies EN 10365:2017 as the referenced European standard for the dimensions, tolerances, and sectional properties of hot-rolled channels, I-beams, and H-beams. The standard reference helps users compare section nomenclature and maintain consistency between design, detailing, and procurement documents.
A DWG download is provided for drawing and modeling workflows. Before using the file in a project, check its scale, units, layer conventions, and compatibility with the project template. Related internal resources could include the site’s Universal Beam terminology, section properties guidance, steel connection and detailing articles, and CAD/DWG reference library.
Frequently asked questions
What type of section is UB 305x127x37?
It is identified on this page as a Universal Beam, a hot-rolled structural steel section commonly documented by its profile designation and geometric properties.
What information is listed for this profile?
The reference includes the profile dimensions, depth, width, web thickness, flange thickness, root fillet radius, sectional area, and unit weight.
What is the role of EN 10365:2017 here?
The page cites EN 10365:2017 as the reference for the dimensions, tolerances, and sectional properties of the relevant hot-rolled steel sections.
Can the DWG be used directly for structural design?
The DWG is a drafting and modeling resource. Confirm its geometry, units, and project requirements before incorporating it into issued documentation, and have structural design decisions verified by a qualified engineer.




