Hybox 355 SHS 90x90x6 is a square hollow section reference for engineers, detailers, fabricators, and CAD users working with structural steel profiles. This page brings together the section designation, principal dimensions, corner radii, sectional area, unit weight, and the cited European standard reference.
Use the dimensional data below when reviewing layouts, connection details, and fabrication drawings. The downloadable DWG can support drafting workflows, while structural verification, connection design, material confirmation, and project compliance remain dependent on the applicable design requirements and engineering review.
Hybox 355 SHS 90x90x6
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 : 90x90x6
Depth : 90 mm
Width : 90 mm
Thickness : 6 mm
Outer Corner Radius : 12 mm
Inner Corner Radius : 6 mm
Sectional Area : 19.2 cm2
Unit Weight : 15.1 kg/m
How to read the Hybox 355 SHS designation
SHS means square hollow section. The designation 90x90x6 identifies the listed outside depth, outside width, and wall thickness in the same order used in the reference data. Because the profile is hollow and square, its geometry is described by a consistent outside shape with formed corners rather than by sharp theoretical corners.
Why the corner radii matter
The outer and inner corner radii are part of the section geometry and help describe the manufactured profile more completely than nominal width and thickness alone. They are relevant when checking clearances, preparing connection details, coordinating plates or fittings, and creating accurate CAD representations.
Using the section properties
The listed sectional area and unit weight provide reference information for quantity checks, material takeoffs, and preliminary coordination. They should not be treated as a substitute for a complete member design or connection check. For design work, confirm the governing project specification, material documentation, load effects, restraint conditions, and applicable design method.
Standard and CAD reference
The source identifies EN 10219-2:2006-04 for dimensions, tolerances, and sectional properties of cold-formed welded structural hollow sections, and notes its relationship to EN 10219-1 for technical delivery conditions. Review the cited standard and project requirements when tolerance, inspection, or delivery details are important.
The supplied DWG is useful for drafting and layout coordination. Before fabrication, compare the drawing with the approved section data and the project’s connection and detailing requirements.
Related reference topics
- Square hollow sections: compare SHS terminology, dimensions, and section-property conventions.
- Hollow-section connections: review practical considerations for connecting plates, braces, and framing members.
- Steel section properties: understand how area, mass, and geometric properties support design checks.
- Structural steel CAD resources: use profile drawings to improve detailing and coordination.
Frequently asked questions
What does SHS mean?
SHS means square hollow section. It describes a hollow structural profile with a square outside shape and formed corners.
What does 90x90x6 describe?
In this reference, the designation identifies the listed outside depth, outside width, and wall thickness of the section.
Why are both inner and outer corner radii listed?
The two radii describe the formed corner geometry on the outside and inside of the hollow section. This information can help with accurate detailing, clearances, and CAD modeling.
What is EN 10219-2 used for in this reference?
It is cited for dimensions, tolerances, and sectional properties of cold-formed welded structural hollow sections. The page also notes that EN 10219-1 covers technical delivery conditions.
Can the DWG be used directly for fabrication?
The DWG is a drafting reference. Confirm its geometry against the approved project data and complete all required engineering, connection, and fabrication reviews before manufacture.
