Celsius 355 SHS 80x80x7.1 is a square hollow section reference entry for engineers, detailers, fabricators, and CAD users working with structural steel members. The source data identifies the section dimensions, corner radii, sectional area, and unit weight for this hot-finished hollow section.
Use this page alongside related references for square hollow sections, hollow-section terminology, section properties, connection detailing, and structural steel CAD resources. The listed values are local reference data and should be checked against the project specification and design requirements before use.
Celsius 355 SHS 80x80x7.1
Celsius 355 Square Hollow Sections
refer to : EN 10210-2:2006-04
the European standard that specifies tolerances, dimensions, and sectional properties for hot-finished structural hollow sections of non-alloy and fine grain steels. It supports EN 10210-1, which covers technical delivery conditions.
Dimension : 80x80x7.1
Depth : 80 mm
Width : 80 mm
Thickness : 7.1 mm
Outer Corner Radius : 10.7 mm
Inner Corner Radius : 7.1 mm
Sectional Area : 20.2 cm2
Unit Weight : 15.9 kg/m
How to read the SHS designation
SHS means square hollow section. The designation 80x80x7.1 describes the square outside dimensions and wall thickness shown in the source entry. Because the section is hollow, its material is distributed around the perimeter rather than across a solid rectangular area.
What the reference values describe
The source lists the section depth and width, wall thickness, outer and inner corner radii, sectional area, and unit weight. Corner radii are important when preparing accurate drawings, checking clearances, detailing joints, or developing fabrication information. Sectional area and unit weight are useful reference properties for quantity takeoffs and preliminary member comparisons, while design checks require the complete set of project-specific engineering assumptions and applicable rules.
Standard context
The entry refers to EN 10210-2:2006-04, which addresses dimensional tolerances and sectional properties for hot-finished structural hollow sections. It is associated with EN 10210-1, which covers technical delivery conditions. The standard reference helps identify the basis of the dimensional information; it does not replace the material certificate, project specification, or an engineer’s verification.
CAD and detailing use
The downloadable DWG resource can support drafting workflows, layout development, and coordination. Before issuing a drawing, confirm the section orientation, end conditions, connection geometry, fabrication allowances, and any required manufacturer or project standards. For related design education, compare this entry with other SHS and RHS references and with guidance on hollow-section connections and section-property terminology.
Frequently asked questions
What does SHS mean?
SHS means square hollow section. It is a closed structural steel profile with a square outside form and a hollow interior.
What does 80x80x7.1 identify?
It identifies the square section’s outside dimensions and wall thickness as listed in the source data. The page also provides the associated corner radii, sectional area, and unit weight.
What standard is referenced for this section?
The source refers to EN 10210-2:2006-04 for dimensional tolerances and sectional properties, together with EN 10210-1 for technical delivery conditions.
Can the listed unit weight be used for procurement?
It can support preliminary quantity calculations, but procurement should be based on the approved project documents, material requirements, order information, and applicable quality documentation.
Is the DWG file sufficient for structural design?
No. A DWG can assist drafting and coordination, but structural design also requires verified material information, loading, restraint, connection details, fabrication requirements, and engineering review.
