UPN 280 is a hot-rolled taper flange channel reference for structural steel detailing and engineering work. This page brings together the profile designation, principal dimensions, geometric details, sectional area, unit weight, and the associated DWG resource.
Use the dimensional data below when checking drawings, comparing channel profiles, or preparing a preliminary steel takeoff. Confirm the applicable project specification and design requirements before using any section in an engineered connection or structural member.
UPN 280
Taper Flange Channels
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 : 280x95x10x15
Depth : 280 mm
Width : 95 mm
Web Thickness : 10 mm
Flange Thickness : 15 mm
Root Fillet Radius : 15 mm
Toe Radius : 7.5 mm
Flange Slope : 8%
Sectional Area : 53.3 cm2
Unit Weight : 41.8 kg/m
How to read the UPN 280 designation
The UPN designation identifies a taper flange channel, while the number identifies the nominal profile depth used in the section name. The listed dimension string presents the principal depth, width, web thickness, and flange thickness in millimetres. These values describe the overall channel geometry and provide a practical starting point for drawing and fabrication checks.
Key geometry for detailing
The web and flanges define the primary channel shape, while the root fillet radius and toe radius describe the transitions between flat surfaces and edges. These curved areas matter when detailing plates, supports, welds, clearances, and connections near the inside corners of the section.
The flange slope is also important when a connection or adjacent component bears against the flange. Do not assume that the flange face is parallel to the web when developing connection details; check the profile geometry shown in the applicable reference data.
Sectional area and unit weight
Sectional area is useful for comparing the amount of steel in the profile and for calculations that depend on the gross cross-section. Unit weight supports preliminary material estimating and checking steel schedules. Neither value, by itself, establishes resistance, stability, connection capacity, or suitability for a particular structural application.
Reference and CAD workflow
The source identifies EN 10365:2017 as the dimensional reference for this channel profile. For drafting, the downloadable DWG can help users place the section in CAD details and compare its geometry with plates, bolts, welds, and adjacent members. Check the drawing scale, units, orientation, and project-layer conventions before issuing a fabrication or construction document.
Related SteelSTD resources may include taper flange channels, European steel section designations, section properties, steel connection detailing, and structural steel DWG references.
UPN 280 FAQ
What type of section is UPN 280?
UPN 280 is a taper flange channel section. The profile has a web, flanges, tapered flange geometry, and curved root and toe transitions.
What standard is referenced for UPN 280?
The source content references EN 10365:2017 for the dimensions, tolerances, and sectional properties of the profile family.
What information is included for UPN 280?
The reference includes the principal dimensions, web and flange thicknesses, root and toe radii, flange slope, sectional area, and unit weight.
Is a UPN 280 suitable for a specific structural design?
A profile designation alone cannot determine suitability. Member resistance, stability, load effects, connection behavior, material requirements, and project criteria must be checked by the responsible engineer.
Is a CAD file available for UPN 280?
Yes. The source page includes a DWG download for the UPN 280 profile. Review units, orientation, and geometry before using it in project documentation.
