The Hybox 355 SHS 180x180x8 is a square hollow section reference entry for structural steel detailing and preliminary section identification. This page records the source standard, key profile dimensions, corner radii, sectional area, unit weight, and the available DWG download.
Use the dimensional information when checking drawings, comparing square hollow sections, or coordinating a steel model. For design work, confirm the applicable material specification, loading, connection details, fabrication requirements, and project design code with the responsible engineer.
Hybox 355 SHS 180x180x8
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 : 180x180x8
Depth : 180 mm
Width : 180 mm
Thickness : 8 mm
Outer Corner Radius : 20 mm
Inner Corner Radius : 12 mm
Sectional Area : 52.8 cm2
Unit Weight : 41.4 kg/m
How to read this SHS reference
The designation 180x180x8 identifies a square hollow section with equal outside depth and width and an 8 mm wall thickness, as listed in the source data. The profile also includes separate outer and inner corner radius values. These radii are important when representing the section accurately in CAD, checking clearances, and interpreting the section geometry.
Standard and sectional data
The entry refers to EN 10219-2:2006-04, which addresses tolerances, dimensions, and sectional properties for cold-formed welded structural hollow sections. The source also notes the relationship with EN 10219-1, which covers technical delivery conditions.
The listed sectional area is useful for section comparisons and for engineering calculations that require the steel area. The unit weight supports estimating material quantities and line loads, subject to project-specific assumptions and verification. These values should be taken from the authoritative local data on this page rather than recreated from a simplified geometric model.
CAD and drafting workflow
The downloadable DWG provides a practical starting point for drawings and layout work. Check the downloaded geometry against the profile data before using it in fabrication documentation, connection detailing, or a coordinated structural model. Related references on this site may include square hollow section terminology, EN 10219 guidance, steel section properties, and CAD/DWG resources.
Design verification
A section designation alone does not establish resistance for a particular application. Member length, restraint, loading, buckling conditions, connection behavior, corrosion allowance, fabrication tolerances, and the governing design rules may all affect the final assessment. Have the selected section and its connections verified by a qualified structural engineer.
Frequently asked questions
What type of section is Hybox 355 SHS 180x180x8?
It is a square hollow section, with equal listed depth and width and an 8 mm listed wall thickness.
Which standard is referenced for this profile?
The source entry refers to EN 10219-2:2006-04 and explains that EN 10219-1 covers technical delivery conditions.
Why are the corner radii listed?
Corner radii describe the curved transitions between the flat faces of the hollow section. They help with accurate CAD representation, clearance checks, and interpretation of the section geometry.
What information is provided for quantity or preliminary calculation work?
The entry provides sectional area and unit weight, along with the profile dimensions. Use the authoritative values shown in the existing technical content and verify application-specific assumptions before design use.
Is a DWG available?
Yes. The page includes a DWG download for the Hybox 355 SHS 180x180x8 profile. Review the file against the listed section data before incorporating it into project documentation.
