Hybox 355 SHS 140x140x8 is a square hollow section reference entry for structural steel design and drafting work. This page brings together the profile dimensions, corner-radius information, sectional area, unit weight, applicable standard reference, and a downloadable DWG file.
Use the source values below when checking a model, preparing fabrication drawings, or comparing this section with other square hollow sections. For design decisions, confirm the required material, loading, connection details, corrosion allowance, and verification method with the responsible engineer.
Hybox 355 SHS 140x140x8
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 : 140x140x8
Depth : 140 mm
Width : 140 mm
Thickness : 8 mm
Outer Corner Radius : 20 mm
Inner Corner Radius : 12 mm
Sectional Area : 40 cm2
Unit Weight : 31.4 kg/m
How to read this SHS reference
SHS means square hollow section: a closed steel profile with equal outside depth and width. The listed dimension identifies the outside size and wall thickness, while the corner-radius entries describe the curved transitions between the flat faces. These details can matter when checking clearances, detailing connections, or interpreting CAD geometry.
Section properties and practical use
The sectional area is a geometric property used in engineering calculations, while the unit weight supports material takeoff and mass estimates. They serve different purposes and should not be treated as interchangeable. The table values on this page are the authoritative local reference for this profile.
When comparing this section with another hollow section, review the complete dimensional and property data rather than relying only on the outside size. Related internal references on hollow-section terminology, section properties, and steel connection detailing can help explain how these values are used in design documentation.
Standard and CAD reference
The source identifies EN 10219-2:2006-04 for tolerances, dimensions, and sectional properties for cold-formed welded structural hollow sections, and notes its relationship to EN 10219-1. The linked DWG provides a drafting reference for the profile geometry. Check the drawing units, layer conventions, and project-specific detailing requirements before incorporating it into a production document.
Design-check reminder
Profile dimensions and listed properties do not by themselves establish resistance, stability, fire performance, connection capacity, or suitability for a particular application. Those checks require the applicable design rules, material documentation, load effects, restraints, fabrication assumptions, and engineering review.
Frequently asked questions
What does SHS mean?
SHS means square hollow section. It describes a closed structural steel profile with equal outside depth and width.
What are the listed corner radii used for?
The outer and inner corner radii describe the curved corners of the section. They are useful when interpreting the profile shape, checking clearances, and preparing connection or fabrication details.
What is the difference between sectional area and unit weight?
Sectional area describes the steel cross-sectional geometry. Unit weight describes the mass associated with a length of the section. Both values are useful, but they answer different engineering and estimating questions.
Which standard is referenced for this profile?
The source references EN 10219-2:2006-04 and explains that it addresses tolerances, dimensions, and sectional properties for cold-formed welded structural hollow sections. It also notes the complementary role of EN 10219-1 for technical delivery conditions.
Can I use the DWG directly for fabrication?
The DWG is a drafting reference for the profile geometry. Before fabrication, confirm units, tolerances, material requirements, connection details, and project-specific drawing controls.
