This reference provides the dimensional and section data for Hybox 355 SHS 80x80x6, a square hollow section used in structural steel detailing and design workflows. Use the values below as the local reference data for identifying the section, checking drafting information, and coordinating models or fabrication documents.
The page also identifies the applicable EN 10219 reference and provides a DWG download for CAD work. For design applications, confirm the required material, loading, connection arrangement, fabrication requirements, and verification method with the responsible engineer.
Hybox 355 SHS 80x80x6
Hybox 355 Square Hollow Sections
refer to : EN 10219-2:2006-04
the European standard that specifies tolerances, dimensions, and sectional properties for cold-formed welded structural hollow sections made of non-alloy and fine grain steels. It complements EN 10219-1, which covers technical delivery conditions.
Dimension : 80x80x6
Depth : 80 mm
Width : 80 mm
Thickness : 6 mm
Outer Corner Radius : 12 mm
Inner Corner Radius : 6 mm
Sectional Area : 16.8 cm2
Unit Weight : 13.2 kg/m
How to read the Hybox 355 SHS reference
SHS means square hollow section. The designation 80x80x6 describes the nominal outside depth, outside width, and wall thickness shown in the reference data. Because the section is hollow, the corner geometry is reported separately through the outer and inner corner radii.
Dimensions and corner geometry
The listed depth and width identify the square outside profile, while the thickness describes the wall. The outer and inner corner radius values help distinguish the rounded corners from a sharp-corner approximation. This information is useful when preparing connection details, checking clearances, and coordinating the section with plates, welds, or adjacent members.
Sectional area and unit weight
The reference includes sectional area and unit weight as separate section properties. Sectional area supports engineering calculations and section identification, while unit weight is useful for estimating member mass and coordinating handling or fabrication information. These values should be used with the project design basis and verified against the governing engineering requirements.
EN 10219 reference
The page cites EN 10219-2 for dimensional, tolerance, and sectional-property information for cold-formed welded structural hollow sections. It also distinguishes the related technical delivery requirements identified under EN 10219-1. Refer to the applicable project documentation and approved material records when confirming compliance.
CAD and drafting workflow
The linked DWG resource can support layout, detailing, and model coordination. Treat downloaded geometry as a drafting reference: confirm the section orientation, corner representation, units, and project layer conventions before incorporating it into production drawings. Related SteelSTD references for SHS dimensions, structural steel section properties, steel connections, and CAD/DWG resources can provide useful follow-up context.
Frequently asked questions
What does Hybox 355 SHS 80x80x6 mean?
It identifies a Hybox 355 square hollow section with the nominal designation 80x80x6. The page lists the corresponding depth, width, thickness, corner radii, sectional area, and unit weight.
What is SHS?
SHS stands for square hollow section. It is a hollow structural steel profile with a square outside form and rounded corners represented by inner and outer corner radii.
Which standard is referenced for this section?
The source reference identifies EN 10219-2 for dimensions, tolerances, and sectional properties, and notes the relationship with EN 10219-1 for technical delivery conditions.
What are the corner radii used for?
Corner radii describe the rounded transitions at the section corners. They are important when checking fit-up, detailing connections, representing the profile in CAD, or coordinating clearances.
Is a DWG file available?
Yes. The page includes a DWG download associated with the Hybox 355 SHS 80x80x6 reference. Review the file units and drafting conventions before using it in project documentation.
Can this section be used directly for structural design?
The listed properties are reference data and do not replace project-specific engineering verification. Design decisions should account for loads, restraints, connections, material requirements, fabrication, and the governing design provisions.
