This page provides a practical reference for the Hybox 355 SHS 180x180x12 square hollow section. Use the source data below to confirm the section dimensions, corner geometry, sectional area, and unit weight before preparing drawings, takeoffs, or design documentation.
The page also identifies the relevant European standard reference and provides a DWG download for CAD workflows. For design use, verify the applicable material, fabrication, connection, and structural requirements separately rather than relying on the section designation alone.
Hybox 355 SHS 180x180x12.0
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 : 180x180x12
Depth : 180 mm
Width : 180 mm
Thickness : 12 mm
Outer Corner Radius : 36 mm
Inner Corner Radius : 24 mm
Sectional Area : 74.5 cm2
Unit Weight : 58.5 kg/m
Understanding the Hybox 355 SHS designation
SHS means square hollow section: a closed structural profile with equal outside depth and width. The designation identifies the Hybox 355 product family and the nominal section dimensions shown in the source data. The listed wall thickness and corner radii are important when the profile is represented in fabrication drawings, connection details, or CAD models.
How to use the section data
The dimensional entries define the outside profile and corner geometry, while the sectional area and unit weight support quantity checks and reference calculations. Use the authoritative values in the source content for schedules, material estimates, and engineering worksheets. Do not infer design resistance, buckling performance, connection capacity, or allowable loading from these entries alone.
Standard and fabrication context
The source references EN 10219-2 for dimensions, tolerances, and sectional properties of cold-formed welded structural hollow sections. It also identifies EN 10219-1 as covering technical delivery conditions. These references help users distinguish geometric section data from the separate requirements that govern product delivery and specification.
CAD and detailing workflow
Download the linked DWG when a reusable section profile is needed for drafting. Check the imported geometry against the listed depth, width, thickness, and corner-radius data before using it in a drawing set. Related SteelSTD resources on SHS dimensions, hollow-section terminology, section properties, and steel connection detailing can provide useful context for review and documentation.
Frequently asked questions
What does SHS mean?
SHS means square hollow section. It describes a closed steel profile with equal outside dimensions in the two square-section directions.
What information is listed for this section?
The source lists the section designation, outside dimensions, wall thickness, outer and inner corner radii, sectional area, and unit weight.
Which standard is referenced?
The source refers to EN 10219-2 for dimensions, tolerances, and sectional properties, and notes the relationship to EN 10219-1 for technical delivery conditions.
Is the DWG ready for structural design?
The DWG is a drafting reference. Confirm its geometry and project-specific requirements before using it in fabrication or structural documentation, and have design decisions verified by a qualified engineer.
