The Hybox 355 SHS 200x200x12 is a square hollow section reference for engineers, detailers, fabricators, and CAD users. This page identifies the section dimensions, corner geometry, sectional area, unit weight, applicable European standard reference, and available DWG file.
Use the listed values as the authoritative local reference for this section. For design work, confirm material, loading, connection details, fabrication requirements, and code checks against the project specification and the responsible engineer’s requirements.
Hybox 355 SHS 200x200x12.0
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 : 200x200x12
Depth : 200 mm
Width : 200 mm
Thickness : 12 mm
Outer Corner Radius : 36 mm
Inner Corner Radius : 24 mm
Sectional Area : 84.1 cm2
Unit Weight : 66 kg/m
How to read the SHS designation
SHS means square hollow section. The designation 200x200x12 describes a square outside profile with equal depth and width and a stated wall thickness. The section is manufactured as a cold-formed welded structural hollow section, as identified by the referenced standard.
Why the corner radii matter
A square hollow section is not geometrically sharp at its corners. The listed outer and inner corner radii describe the curved transition between the flat faces and help distinguish the actual section profile from a simplified sharp-corner sketch. This geometry can matter when checking clearances, detailing connections, preparing fabrication drawings, or comparing section-property data.
Using the section-property data
The sectional area and unit weight are provided for reference and quantity calculations. Section properties should be read together with the applicable material specification, design standard, buckling assumptions, connection model, and project loading. Do not treat a shape designation alone as confirmation that the member is adequate for a particular application.
Standard and CAD reference
The page cites EN 10219-2 for dimensions, tolerances, and sectional properties, while EN 10219-1 is identified as covering technical delivery conditions. The linked DWG resource can support drafting and coordination, but the drawing should be checked against the project’s approved geometry and fabrication requirements before issue.
Related steel-reference topics
- Square hollow section terminology and profile geometry
- Steel section properties and how to interpret area and unit weight
- Hollow-section connection and detailing considerations
- Structural steel CAD and DWG reference files
Frequently asked questions
What does SHS mean?
SHS means square hollow section. It describes a hollow steel profile with equal outside depth and width.
What does 200x200x12 represent?
For this listing, the designation identifies the section’s stated outside depth, outside width, and wall thickness. The detailed values are shown in the source data above.
Why are both inner and outer corner radii listed?
The two radii describe the curved corner geometry on the inside and outside of the hollow section. They provide a more realistic description than assuming perfectly sharp corners.
What is the purpose of the DWG download?
The DWG file provides a CAD reference for drafting and coordination. Verify the downloaded geometry and any project-specific requirements before using it in issued design or fabrication documentation.
Does this page confirm that the section is suitable for my design?
No. Section suitability depends on the complete structural design, including loads, restraints, material requirements, connections, fabrication, and applicable design checks.
