Hybox 355 SHS 40x40x2 is a square structural hollow section reference for engineers, detailers, fabricators, and CAD users working with cold-formed welded steel sections. This page brings together the section dimensions, corner-radius information, sectional area, unit weight, applicable standard reference, and a downloadable DWG resource.
Use the values below as a section-identification and drafting reference. Any use in a structural member, connection, frame, or load-bearing assembly should be checked against the project design basis, material documentation, fabrication requirements, and applicable design rules.
Hybox 355 SHS 40x40x2.0
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 : 40x40x2
Depth : 40 mm
Width : 40 mm
Thickness : 2 mm
Outer Corner Radius : 4 mm
Inner Corner Radius : 2 mm
Sectional Area : 2.94 cm2
Unit Weight : 2.3 kg/m
How to read the Hybox 355 SHS designation
SHS means square hollow section. The 40x40x2 designation identifies the nominal outside depth and width together with the wall thickness shown in the source data. Because the section is hollow, its geometry differs from a solid square bar and includes outside and inside corner radii.
Section reference information
- Section type: Hybox 355 square hollow section
- Nominal dimensions: 40x40x2
- Corner geometry: the source lists both outer and inner corner radii
- Sectional area: provided in square centimetres for section-property reference
- Unit weight: provided in kilograms per metre for material takeoff and preliminary quantity checks
The listed corner radii are important when checking clearances, connection detailing, end preparation, bearing arrangements, and the way the section is represented in CAD. Do not treat the nominal outside dimensions as a complete description of the actual corner shape.
Standard and technical context
The source refers to EN 10219-2:2006-04, which addresses tolerances, dimensions, and sectional properties for cold-formed welded structural hollow sections made from non-alloy and fine grain steels. It is identified alongside EN 10219-1, which covers technical delivery conditions. For design or procurement, confirm the required edition, grade, tolerances, inspection documents, and project specification with the responsible engineer or supplier.
CAD and drafting resource
A DWG download is provided with the original reference data. The file can support layout, detailing, and coordination work, but users should verify the drawing units, insertion scale, layer conventions, and geometry against the project standard before issuing production or construction documents. Related topics such as steel shapes, structural hollow sections, and section properties can help with broader shape selection and terminology.
Frequently asked questions
What does SHS mean?
SHS means square hollow section. It describes a hollow steel profile with a square outside form and rounded corners rather than sharp external corners.
What does 40x40x2 describe?
In this reference, 40x40x2 identifies the nominal outside depth, nominal outside width, and wall thickness listed for the section. The source also provides separate outer and inner corner-radius values.
Why are the corner radii relevant?
Corner radii affect the actual section geometry and can matter when checking fit-up, clearances, connection details, end cuts, and CAD representations.
What information is provided for estimating steel quantity?
The source includes a unit weight expressed in kilograms per metre. It can be used for preliminary material takeoff, subject to confirmation against the supplied product and project requirements.
Which standard is referenced?
The page references EN 10219-2:2006-04 for dimensions, tolerances, and sectional properties, and identifies EN 10219-1 as covering technical delivery conditions. Confirm the governing requirements before procurement or design use.
Is the DWG file ready for construction use?
The DWG is a reference resource. Check its units, scale, geometry, and project drafting requirements before incorporating it into issued drawings.
