The Hybox 355 SHS 90x90x4 is a cold-formed welded square hollow section reference for steel detailing, section identification, and preliminary engineering documentation. This page brings together the profile dimensions, corner-radius information, sectional area, unit weight, applicable standard reference, and a downloadable DWG file.
Use the dimensional data below when coordinating SHS dimensions, section schedules, fabrication drawings, and CAD references. For design work, confirm material properties, connection details, loading, stability, and fabrication requirements against the project specification and the responsible engineer’s calculations.
Hybox 355 SHS 90x90x4
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 : 90x90x4
Depth : 90 mm
Width : 90 mm
Thickness : 4 mm
Outer Corner Radius : 8 mm
Inner Corner Radius : 4 mm
Sectional Area : 13.3 cm2
Unit Weight : 10.4 kg/m
How to read this SHS reference
SHS means square hollow section. Its equal outside depth and width give the profile a square plan shape, while the wall thickness and corner radii describe the manufactured section geometry. The listed sectional area and unit weight are useful for comparing profiles, preparing material takeoffs, and identifying the correct section in design or drafting software.
Standard and dimensional context
The source identifies EN 10219-2:2006-04 as the dimensional and sectional-property reference for cold-formed welded structural hollow sections. It also notes the relationship with EN 10219-1, which addresses technical delivery conditions. Readers checking tolerances, production requirements, or procurement documentation should review the project-approved standard information rather than relying on a nominal designation alone.
CAD and detailing workflow
The accompanying DWG download can support layout and detailing workflows where a reusable section profile is helpful. Before issuing drawings, check units, layer conventions, insertion scale, and the drawing’s relationship to the project section schedule. Related reference topics include square hollow section terminology, steel section properties, EN 10219 hollow sections, and structural steel DWG resources.
What the listed properties do—and do not—establish
Sectional area and unit weight help identify the profile and support quantity or self-weight workflows, but they do not by themselves establish member resistance, permissible loading, connection capacity, fire performance, or suitability for a particular structural application. Those conclusions require the applicable material, design method, restraint conditions, and project requirements.
Frequently asked questions
What does SHS mean?
SHS means square hollow section, a structural steel profile with a square outside shape and a hollow interior.
Which standard is referenced for this profile?
The source references EN 10219-2:2006-04 for dimensions, tolerances, and sectional properties, and identifies EN 10219-1 as the related technical delivery conditions standard.
Why are both outer and inner corner radii listed?
They describe the curved transition at the corners of the hollow section. Corner geometry can matter when checking fit-up, detailing interfaces, clearances, and section-property references.
What is the DWG file used for?
The DWG file provides a CAD reference for drafting and coordination. Verify its units and scale before incorporating it into project drawings.
Can the listed section data be used as a complete design check?
No. The listed geometry and reference properties identify the section, but member and connection design require project-specific engineering verification.
