Hybox 355 SHS 150x150x5 is a square structural hollow section reference for dimensional and section-property checks. This page brings together the supplied geometry, corner radii, sectional area, unit weight, applicable standard context, and a downloadable DWG resource.
Use the source data below when reviewing structural hollow sections, preparing drawings, or comparing section information. For design work, confirm the applicable project requirements, material specification, connection details, and engineering assumptions separately.
Hybox 355 SHS 150x150x5
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 : 150x150x5
Depth : 150 mm
Width : 150 mm
Thickness : 5 mm
Outer Corner Radius : 10 mm
Inner Corner Radius : 5 mm
Sectional Area : 28.4 cm2
Unit Weight : 22.3 kg/m
How to read this SHS reference
The designation 150x150x5 identifies a square hollow section with a 150 mm depth, 150 mm width, and 5 mm wall thickness. The listed outer and inner corner radii describe the rounded transitions at the section corners and are important when interpreting the section outline in drawings or CAD models.
Section properties and reference data
The source content lists a sectional area of 28.4 cm2 and a unit weight of 22.3 kg/m. These values are reference properties for this specific section designation and should be kept distinct from project-specific design resistance, stability checks, connection resistance, or fabrication requirements.
Applicable EN 10219 reference
The page identifies EN 10219-2:2006-04 as the dimensional and sectional-property reference for cold-formed welded structural hollow sections made from non-alloy and fine grain steels. It also notes the relationship with EN 10219-1, which addresses technical delivery conditions. Readers checking compliance should review the complete project specification and the applicable standard documents rather than relying on the designation alone.
DWG download and drafting use
The linked DWG provides a practical starting point for drafting and coordination. Before placing the profile in a final drawing, check units, layer conventions, insertion orientation, corner geometry, and any project-specific CAD requirements. The drawing should be coordinated with the approved section schedule and engineering documentation.
Related reference topics
- Section properties: useful when comparing area and other listed properties across steel shapes.
- Structural hollow sections: provides terminology and context for SHS, RHS, and related profiles.
- Steel connections and detailing: helps connect section selection with practical drawing and fabrication considerations.
Frequently asked questions
What does Hybox 355 SHS 150x150x5 mean?
It identifies a Hybox 355 square hollow section with a 150 mm depth, 150 mm width, and 5 mm thickness.
What are the listed corner radii?
The listed outer corner radius is 10 mm, and the listed inner corner radius is 5 mm.
What sectional area is listed for this section?
The source lists a sectional area of 28.4 cm2.
What is the listed unit weight?
The listed unit weight is 22.3 kg/m.
Which standard is referenced?
The source refers to EN 10219-2:2006-04 for dimensions, tolerances, and sectional properties, and notes that EN 10219-1 covers technical delivery conditions.
Is a CAD file available?
Yes. The page includes a DWG download for the Hybox 355 SHS 150x150x5 profile.











