Hybox 355 SHS 80x80x4 is a square structural hollow section reference for steel detailing, preliminary checks, and CAD coordination. This page brings together the listed section dimensions, corner radii, sectional area, unit weight, applicable standard reference, and a downloadable DWG file.
Use the source values below as the controlling local reference for this section. For design work, confirm the required material designation, connection details, loading assumptions, fabrication requirements, and project specification with the responsible engineer.
Hybox 355 SHS 80x80x4
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 : 80x80x4
Depth : 80 mm
Width : 80 mm
Thickness : 4 mm
Outer Corner Radius : 8 mm
Inner Corner Radius : 4 mm
Sectional Area : 11.7 cm2
Unit Weight : 9.2 kg/m
How to read the Hybox 355 SHS reference
The designation identifies a square hollow section with equal outside depth and width and a stated wall thickness. The listed outer and inner corner radii describe the rounded transitions between the flat faces. These details matter when coordinating fittings, end preparations, weld layouts, clearances, and CAD geometry.
Standard reference and delivery information
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 identifies EN 10219-1 as the related standard covering technical delivery conditions. Always check the project specification and the supplier’s documentation before treating a standard reference as a complete purchasing or design requirement.
Using the section data in design and drafting
The listed sectional area and unit weight support material takeoff, mass estimates, and preliminary comparison with other hollow sections. They do not, by themselves, establish resistance, buckling performance, connection capacity, fire performance, or compliance for a particular structure. Those checks require the applicable design method, material information, restraint conditions, loads, and connection model.
For drafting workflows, the linked DWG can help with geometry coordination and detailing. Verify units, layer conventions, scaling, and the drawing’s representation of corner geometry before incorporating it into a project file. Related resources on structural hollow sections, section properties, steel connections, and CAD/DWG references can provide useful background when comparing or detailing this profile.
Frequently asked questions
What does SHS mean?
SHS means square hollow section. It describes a hollow steel profile with square outside geometry, subject to the specified corner radii and wall thickness.
Which standard is referenced for this section?
The source references EN 10219-2:2006-04 for dimensions, tolerances, and sectional properties, with EN 10219-1 identified for technical delivery conditions.
What information is provided for Hybox 355 SHS 80x80x4?
The reference lists the section dimension, depth, width, thickness, outer and inner corner radii, sectional area, and unit weight. These values should be read directly from the technical content on this page.
Can the DWG be used directly for fabrication?
The downloadable DWG is a drafting reference, not a substitute for approved fabrication drawings or project specifications. Check its geometry, units, tolerances, weld requirements, and revision status before use.
Does the section listing prove structural suitability?
No. Structural suitability depends on the governing loads, restraint, buckling conditions, material requirements, connections, corrosion or fire considerations, and the applicable design standard. A qualified engineer should complete the required verification.
