The RHS 150x100x4 is a cold-formed welded rectangular hollow section with a nominal depth of 150 mm, width of 100 mm, and wall thickness of 4 mm. This page brings together the section identification, corner-radius information, basic section data, and a CAD resource for reference and detailing work.
Use the dimensional data below when checking drawings, comparing rectangular hollow sections, or preparing preliminary steelwork layouts. For design decisions, confirm the required material grade, loading, connection arrangement, fabrication requirements, and applicable project specifications with the responsible engineer.
RHS 150x100x4
Cold Formed Welded Rectangular Steel Tubes
refer to : EN 10219-2
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 : 150x100x4
Depth : 150 mm
Width : 100 mm
Thickness : 4 mm
Outer Corner Radius : 8 mm
Inner Corner Radius : 4 mm
Sectional Area : 18.95 cm2
Unit Weight : 14.9 kg/m
About the RHS 150x100x4 designation
In an RHS designation, the first two values describe the outside section dimensions and the final value describes the wall thickness. For this section, the source data identifies a 150 mm depth, a 100 mm width, and a 4 mm wall. The listed outer and inner corner radii describe the formed corners and are important when coordinating the section with plates, fittings, weld details, and connection geometry.
Standard reference and section data
The source refers to EN 10219-2 for dimensional, tolerance, and sectional-property information for cold-formed welded structural hollow sections. It also identifies EN 10219-1 as covering technical delivery conditions. These references help distinguish dimensional requirements from material delivery requirements when reviewing procurement documents or fabrication information.
The listed sectional area and unit weight are useful for preliminary quantity checks and member scheduling. They should not be treated as a complete structural design basis: resistance, stability, deflection, connection behavior, corrosion allowance, and fabrication effects require the appropriate project inputs and engineering checks.
Drafting and related reference topics
A DWG file is provided for use in compatible drafting and detailing workflows. Check the downloaded geometry against the project drawing standard before incorporating it into production documents. Related SteelSTD topics may include rectangular hollow sections, sectional area and unit weight, steel section terminology, and hollow-section connections and detailing.
Frequently asked questions
What does RHS 150x100x4 mean?
It identifies a rectangular hollow section with an outside depth of 150 mm, an outside width of 100 mm, and a wall thickness of 4 mm, as listed in the source data.
Which standard is referenced for this section?
The page references EN 10219-2 for dimensions, tolerances, and sectional properties, with EN 10219-1 identified for technical delivery conditions.
What are the corner radii used for?
The outer and inner corner radii describe the formed transitions at the section corners. They can matter when checking fit-up, clearances, connection plates, weld access, and CAD geometry.
Is the listed unit weight sufficient for structural design?
No. Unit weight supports preliminary material and quantity checks, but member design also depends on the section response, material, loads, restraints, connections, and applicable design requirements.
Is a CAD file available?
Yes. The page includes a DWG download for the RHS 150x100x4 profile. Review the file and drawing units before using it in project documentation.
