The Celsius 355 RHS 200x100x11 is a rectangular hollow section reference for structural steel detailing, drafting, and section-property review. This page brings together the profile dimensions, corner radii, sectional area, unit weight, applicable standard reference, and a downloadable DWG resource.
Use the dimensional data below when checking the section designation in drawings, models, material schedules, and connection details. For related terminology, see the SteelSTD references for rectangular hollow sections, sectional area, and steel section properties.
Celsius 355 RHS 200x100x11
Celsius 355 Rectangular 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 : 200x100x11
Depth : 200 mm
Width : 100 mm
Thickness : 11 mm
Outer Corner Radius : 16.5 mm
Inner Corner Radius : 11 mm
Sectional Area : 59.9 cm2
Unit Weight : 47 kg/m
Understanding the RHS designation
RHS means rectangular hollow section. The designation 200x100x11 identifies the nominal outside depth, outside width, and wall thickness in the order shown by the source data. The listed depth is 200 mm, the width is 100 mm, and the thickness is 11 mm.
When using the profile in a drawing or model, keep the section orientation consistent. Rotating an RHS changes which outside dimension is treated as the depth or width in the detail, even though the section itself remains the same steel profile.
Corner radii and section properties
Unlike a sharp-cornered plate-built box, a hot-finished RHS has rounded outside and inside corners. The source lists an outer corner radius of 16.5 mm and an inner corner radius of 11 mm. These details can affect connection detailing, fit-up, clearances, and the interpretation of CAD geometry.
The listed sectional area is 59.9 cm2, and the listed unit weight is 47 kg/m. Treat these as reference values for the identified section and confirm that the selected profile, material designation, and project requirements match before using them in engineering calculations.
Standard reference and CAD workflow
The source refers to EN 10210-2:2006-04 for tolerances, dimensions, and sectional properties of hot-finished structural hollow sections, with EN 10210-1 covering technical delivery conditions. The standard reference helps users distinguish the profile data from project-specific fabrication, inspection, and design requirements.
Download the associated DWG when a CAD representation is needed for drafting or coordination. Check the drawing units, layer conventions, insertion point, and model orientation before incorporating the file into a project template. Related SteelSTD resources on DWG steel sections, hollow-section connections, and structural steel detailing can support the next stage of review.
Quick reference
- Section: Celsius 355 rectangular hollow section
- Designation: 200x100x11
- Depth: 200 mm
- Width: 100 mm
- Thickness: 11 mm
- Outer corner radius: 16.5 mm
- Inner corner radius: 11 mm
- Sectional area: 59.9 cm2
- Unit weight: 47 kg/m
Frequently asked questions
What does RHS mean?
RHS stands for rectangular hollow section. It describes a closed, rectangular steel profile with hollow internal space and rounded corners.
What do the numbers 200x100x11 represent?
They identify the section dimensions shown by the source: 200 mm depth, 100 mm width, and 11 mm wall thickness.
Which standard is referenced for this section?
The page refers to EN 10210-2:2006-04 for dimensions, tolerances, and sectional properties of hot-finished structural hollow sections. EN 10210-1 is identified as covering technical delivery conditions.
Why are the corner radii important?
Corner radii describe the rounded transitions at the outside and inside corners of the RHS. They are useful when checking clearances, connection details, fabrication interfaces, and CAD geometry.
Is a DWG file available?
Yes. The source includes a downloadable DWG for the Celsius 355 RHS 200x100x11 profile. Review its units and orientation before using it in project drawings.
