If you’re planning to remove a load bearing wall or create an open-plan space in your home, you’ve probably heard the term “RSJ beam.” But many homeowners are unsure what an RSJ actually is and why it’s needed during structural alterations. An RSJ, which stands for Rolled Steel Joist, is a structural steel beam designed to support the weight of the property once a load bearing wall has been removed. It safely redistributes the structural load above and helps maintain the stability of the building. Load bearing walls are responsible for supporting upper floors, ceilings, roof structures, or masonry above. When one of these walls is removed, that support needs to be replaced with something equally strong — which is where an RSJ beam comes in. RSJ beams are commonly used in projects such as: Open-plan kitchen renovations Kitchen diner conversions Structural wall removals Chimney breast removals Loft conversions Large property extensions Before an RSJ is installed, a structural engineer will calculate the correct beam size and support requirements based on the loads being carried. This ensures the beam is capable of safely supporting the structure of the property. During installation, temporary structural supports are first put into place before the wall is removed. The steel beam is then carefully fitted into position and secured onto suitable supports at each end. Building regulations approval is normally required for RSJ installations to ensure the work complies with structural safety standards. Many homeowners are surprised by how much difference an RSJ installation can make to the overall feel of a property. By removing structural walls safely, homes can be transformed into larger, brighter, and more modern living spaces. However, installing structural steel beams should always be carried out by experienced professionals. Incorrect installation can lead to structural movement, cracking, or serious safety risks. At Structural Projects North West, we specialise in RSJ installations, load bearing wall removals, chimney breast removals, and structural alterations across Manchester and the North West. Our experienced team delivers safe, fully compliant structural work for homeowners looking to transform their properties. If you’re considering a structural alteration project, contact Structural Projects North West today for expert advice and a free quote.