The Hybox 355 SHS 120x120x10 is a square hollow section reference entry for steel detailing, drafting, and preliminary section comparison. This page brings together the listed dimensions, corner radii, sectional area, unit weight, applicable standard reference, and a downloadable DWG file.
Use the data below as a section-reference resource, then verify material requirements, tolerances, connection details, and design checks against the project specification and the governing engineering requirements.
Hybox 355 SHS 120x120x10
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 : 120x120x10
Depth : 120 mm
Width : 120 mm
Thickness : 10 mm
Outer Corner Radius : 25 mm
Inner Corner Radius : 15 mm
Sectional Area : 40.6 cm2
Unit Weight : 31.9 kg/m
How to read the SHS designation
SHS means square hollow section. In the designation 120x120x10, the first two values identify the nominal outside depth and width, while the final value identifies the wall thickness. The source data also identifies separate outer and inner corner radii, which are important when modeling the section or preparing fabrication details.
What the listed reference data means
The section entry reports the geometric dimensions together with sectional area and unit weight. These values support tasks such as section identification, CAD model preparation, material takeoff, and comparison with other square hollow sections. They should not be treated as a substitute for project-specific verification of resistance, stability, connection behavior, fabrication, or corrosion requirements.
EN 10219-2 reference
The page cites EN 10219-2:2006-04 for dimensions, tolerances, and sectional properties of cold-formed welded structural hollow sections made from non-alloy and fine grain steels. It also distinguishes the related technical delivery requirements referenced through EN 10219-1. Consult the applicable project documentation and current controlled standards when confirming compliance.
Using the DWG resource
The downloadable DWG can help with drafting and coordination workflows. Before using the profile in a fabrication or construction drawing, confirm the drawing units, layer conventions, section orientation, and any project-specific detailing requirements. Pair this entry with the site’s references for section properties, steel terminology, and connection detailing to support a consistent engineering workflow.
Frequently asked questions
What does Hybox 355 SHS 120x120x10 identify?
It identifies a Hybox 355 square hollow section with the nominal dimensions and wall thickness shown in the designation. The page’s source data provides the corresponding corner radii, sectional area, and unit weight.
Which standard is referenced for this section?
The source references EN 10219-2:2006-04 for dimensions, tolerances, and sectional properties, and notes the relationship to EN 10219-1 for technical delivery conditions.
Can the DWG be used directly for fabrication?
The DWG is a drafting reference. Check its units and geometry against the controlled project information, fabrication requirements, and applicable engineering documentation before issuing it for manufacture.
Does this page provide a complete structural design check?
No. The listed section data does not replace project-specific checks for strength, stability, connections, fabrication, or other design requirements. A qualified engineer should verify the section for its intended application.
