The Hybox 355 SHS 80x80x3 is a square hollow section reference for structural steel detailing, specification review, and CAD coordination. This page preserves the source dimensions and section data while explaining how to interpret the listing.
Use the accompanying DWG download when developing drawings, checking clearances, or coordinating hollow-section geometry. For broader terminology, compare this entry with the site’s references on square hollow sections, sectional properties, and steel connection detailing.
Hybox 355 SHS 80x80x3.0
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 : 80x80x3
Depth : 80 mm
Width : 80 mm
Thickness : 3 mm
Outer Corner Radius : 6 mm
Inner Corner Radius : 3 mm
Sectional Area : 9.01 cm2
Unit Weight : 7.1 kg/m
How to read the Hybox 355 SHS designation
SHS means square hollow section. In the designation 80x80x3, the first two values identify the nominal outside depth and width, while the final value identifies the wall thickness. The source listing reports these dimensions as 80 mm depth, 80 mm width, and 3 mm thickness.
Corner radii and section data
The listed outer corner radius is 6 mm and the inner corner radius is 3 mm. These details are important when a drawing, connection, clearance check, or fabrication detail depends on the actual rounded corners rather than an idealized sharp-corner outline.
The page also reports a sectional area of 9.01 cm2 and a unit weight of 7.1 kg/m. Treat these as the authoritative local reference values for this entry. They should not be confused with separately calculated design resistances or member capacities, which require the applicable design assumptions and engineering verification.
Standard reference
The listing refers to EN 10219-2:2006-04 for tolerances, dimensions, and sectional properties of cold-formed welded structural hollow sections made from non-alloy and fine grain steels. It identifies EN 10219-1 as the related standard covering technical delivery conditions. Review the applicable project specification and governing requirements before using the section in design or procurement.
CAD and drafting use
The downloadable DWG can support layout, detailing, and coordination workflows involving this SHS profile. Confirm drawing units, layer conventions, and the required level of geometric detail before incorporating the file into a project model. Related internal resources on DWG steel profiles, hollow-section connections, and section property terminology can provide useful drafting context.
Frequently asked questions
What does SHS mean?
SHS means square hollow section. It describes a hollow structural steel profile with square outside dimensions.
What are the dimensions of the Hybox 355 SHS 80x80x3?
The source lists a depth of 80 mm, a width of 80 mm, and a thickness of 3 mm.
What corner radii are listed?
The listed outer corner radius is 6 mm, and the listed inner corner radius is 3 mm.
Which standard is referenced?
The entry refers to EN 10219-2:2006-04 for tolerances, dimensions, and sectional properties, and notes the relationship to EN 10219-1 for technical delivery conditions.
Is a CAD file available?
Yes. The page includes a DWG download associated with the Hybox 355 SHS 80x80x3 profile.
