Hybox 355 SHS 400x400x10 reference
This reference page provides the listed dimensions and section data for the Hybox 355 square hollow section. Use the source values below when checking a drawing, comparing hollow-section sizes, or preparing a preliminary reference for design and detailing work.
The page also identifies the applicable European standard reference and provides access to a DWG file. Confirm the project specification, material documentation, fabrication requirements, and design assumptions before using any section data in engineering work.
Hybox 355 SHS 400x400x10
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 : 400x400x10
Depth : 400 mm
Width : 400 mm
Thickness : 10 mm
Outer Corner Radius : 25 mm
Inner Corner Radius : 15 mm
Sectional Area : 153 cm2
Unit Weight : 120.1 kg/m
How to read the SHS designation
SHS means square hollow section. The designation 400x400x10 describes the square outside dimensions and wall thickness listed in the reference data. The depth and width are equal, which is characteristic of a square section, while the corner radii describe the rounded transitions between the flat faces.
Dimensions and section data
The source content reports the section depth, width, thickness, outer corner radius, inner corner radius, sectional area, and unit weight. These values serve different purposes: geometric dimensions support drawing and detailing checks, sectional area is a section-property reference, and unit weight supports material quantity and handling estimates. They should not be treated as a substitute for project-specific structural verification.
Standard reference
The page refers to EN 10219-2:2006-04 for tolerances, dimensions, and sectional properties of cold-formed welded structural hollow sections made from non-alloy and fine grain steels. It also identifies EN 10219-1 as the standard covering technical delivery conditions. Consult the applicable project documents and current controlled standards when confirming compliance.
DWG reference file
The linked DWG provides a useful starting point for drafting and coordination. Check the drawing units, layer structure, scale, revision status, and project-specific detailing requirements before incorporating the file into production documentation. A CAD reference file does not replace fabrication or design review.
Frequently asked questions
What does SHS mean?
SHS means square hollow section. It is a hollow structural profile with square outside geometry and rounded corners.
What does 400x400x10 identify?
In this page title, the designation identifies the listed square outside dimensions and wall thickness for the Hybox 355 section. Refer to the source values for the corresponding depth, width, and thickness entries.
Which standard is referenced for this section?
The source content refers to EN 10219-2:2006-04 for tolerances, dimensions, and sectional properties, and notes that EN 10219-1 covers technical delivery conditions.
What information is provided for the section?
The reference lists the section dimensions, corner radii, sectional area, and unit weight. These data should be checked against the governing project requirements before design or fabrication use.
Is a DWG file available?
Yes. The page includes a download reference for a DWG file associated with the Hybox 355 SHS 400x400x10 section. Review the file before using it in project drawings.










