This reference identifies the Hybox 355 square hollow section (SHS) with the listed 150x150x4 designation. It brings together the published dimensions, corner radii, sectional area, unit weight, applicable standard reference, and a CAD download for drafting workflows.
Use the original values below as the controlling local reference for this section. For broader terminology, compare the entry with the site’s guidance on structural steel shapes and hollow structural sections.
Hybox 355 SHS 150x150x4
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 : 150x150x4
Depth : 150 mm
Width : 150 mm
Thickness : 4 mm
Outer Corner Radius : 8 mm
Inner Corner Radius : 4 mm
Sectional Area : 22.9 cm2
Unit Weight : 18 kg/m
How to read the Hybox 355 SHS designation
SHS means square hollow section. The designation communicates the section’s square outside profile and nominal wall thickness; the detailed entry below provides the corresponding depth, width, corner radii, sectional area, and unit weight. Corner radii are part of the actual manufactured profile, so they should not be treated as a sharp-corner approximation when preparing drawings or checking section geometry.
Standard reference and dimensional data
The entry refers to EN 10219-2:2006-04 for dimensional, tolerance, and sectional-property information for cold-formed welded structural hollow sections. The source also distinguishes this dimensional reference from EN 10219-1, which addresses technical delivery conditions. When reviewing procurement documents, fabrication information, or inspection requirements, confirm that the applicable product requirements are being interpreted together.
The listed sectional area and unit weight are useful for preliminary quantity checks, member self-weight inputs, and comparison with other hollow sections. They do not by themselves establish resistance, buckling performance, connection capacity, or suitability for a particular structure. Those checks require the governing design method, material information, loading, restraint, connection details, and project requirements.
DWG download and drafting checks
The linked DWG file can support CAD and detailing work. Before issuing a drawing, verify the profile orientation, units, corner geometry, material callout, end conditions, and any fabrication tolerances required by the project. For related guidance, see the site’s resources on steel connections, steel detailing, and steel CAD and DWG references.
Frequently asked questions
What does SHS mean?
SHS means square hollow section. It is a hollow steel profile with a square outside form and manufactured corner radii.
Which standard is referenced for this section?
The source entry refers to EN 10219-2:2006-04 for dimensions, tolerances, and sectional properties. It notes that EN 10219-1 covers technical delivery conditions.
What information is provided for this Hybox 355 section?
The reference lists the section designation, depth, width, thickness, outer and inner corner radii, sectional area, and unit weight. It also provides a DWG download link.
Can the listed sectional area and unit weight be used as a complete design check?
No. They are reference inputs only. Structural verification must also consider material requirements, loads, stability, connections, fabrication, and the applicable design rules.
What should be checked before using the DWG file?
Check the CAD units, profile dimensions, corner geometry, material identification, drawing scale, and project-specific detailing requirements before incorporating the file into issued documents.
