Square bars

Square bars made of wrought iron – a versatile bar material for robust metalwork projects

Square bars are among the most versatile bar materials used in metalworking and construction. The range offered by FeNau GmbH includes solid, high-quality square bars made from S235JR steel in various dimensions and lengths. The square shape offers high stability, making square bars ideal when load-bearing capacity and dimensional stability are required – whether in fence and gate construction, balustrade construction, staircase construction or general metal structures.

Applications for square steel bars

Square bars are used in numerous applications within professional metalwork and the trades. They are valued for their straight shape, good load distribution and ease of further processing:

• Fence and gate construction: as vertical or horizontal infill bars, cross-braces or load-bearing frame profiles.
• Balustrades and staircases: for sturdy infill panels, connecting elements and load-bearing systems in balustrades and handrails.
• General metalwork: as structural profiles for frames, reinforcements or brackets.
• Architecture & commercial construction: for visible design elements with robust lines and a clean aesthetic.

Material: S235JR steel – robust, weldable and highly formable

The FeNau range features square bars made from the tried-and-tested structural steel S235JR. This type of steel offers an excellent combination of strength, weldability and formability, making it particularly popular in metal construction. The square bars are supplied in their raw state, allowing you to adapt the components perfectly to your project – whether through drilling, welding, cutting or subsequent surface treatment.

Thanks to these properties, square bars are not only technically robust but also versatile in terms of further processing. By galvanising, painting or coating them, you can provide the surface with lasting protection against the elements whilst also enhancing its appearance.

Product variants, dimensions & finishes

FeNau offers square bars in a wide range of cross-sections and lengths. Standard sizes include small profiles such as 20×20 mm or 30×30 mm, as well as larger dimensions such as 80×80 mm or 10 ::contentReference[oaicite:0]{index=0} 0×100 mm. Depending on the project requirements, you can choose from various thicknesses and lengths to meet both structural and aesthetic requirements.

Specially textured variants, hammered profiles or decorative finishes are particularly suitable when both function and design are equally important – for example, in exposed structures such as fencing or balustrades.

Processing & Installation Instructions

Square bars can be easily integrated into existing metal construction projects. Thanks to their uniform shape, they are ideal for welding or mechanical joining. In fencing or balustrade construction, they can be integrated into frames, used as infill material or employed as load-bearing elements in staircases, gates and balconies.

During installation, it is advisable to plan the angles, joints and fixing points carefully to ensure that both the structural requirements are met and durable connections are achieved. The excellent welding properties of S235JR make it easy to work with, even for experienced DIY enthusiasts.

Aesthetics & Function in Harmony

Square bars combine technical strength with a clean, robust appearance. When combined with other wrought iron elements such as decorative bars, handrails or Baroque ornamentation, they create an aesthetically harmonious metal structure that impresses both functionally and aesthetically. Whether classic, rustic or modern – square bars provide a solid foundation for your projects.