bjälklagsbalk

A bjälklagsbalk, often translated as floor joist or ceiling joist, is a horizontal structural timber or beam that forms part of a floor or ceiling structure in a building. These beams are typically spaced at regular intervals and are supported at their ends by load-bearing walls or other structural elements. Their primary function is to carry the load of the floor or ceiling above and to transfer this load to the supporting walls.

Bjälklagsbalks are essential for creating stable and level surfaces for floors and ceilings. They are usually made of wood, although in some modern construction, engineered wood products or steel may be used. The size and spacing of bjälklagsbalks are determined by engineering calculations based on the intended load, span between supports, and the type of material used. Proper installation and spacing are crucial for preventing sagging, deflection, and ensuring the overall structural integrity of the building. They also provide a surface to which floorboards, ceiling panels, or other finishes can be attached. In older timber-framed buildings, the bjälklagsbalks are a prominent part of the visible structure.