How are the ends of bottom bearing joists normally laterally restrained?

Bottom bearing joists play a critical role in supporting loads along their length, and ensuring they are laterally restrained at the ends is vital for maintaining structural integrity and stability. Solid blocking is often used for this purpose because it provides a robust method of supporting the joists at their ends.

When solid blocking is installed, it prevents lateral movement and helps to distribute loads evenly. This is important because, without proper lateral restraint, joists can bow or shift under load, leading to performance issues and potential structural failure. The blocking is typically installed perpendicular to the joists between them, effectively creating a solid surface that enhances their ability to carry loads while maintaining their defined position.

Other alternatives such as using screws, metal brackets, or adhesive bonding may provide some form of support, but they do not typically offer the same level of strength and stability across the full width and depth of the joists like solid blocking does. Solid blocking, therefore, is the preferred and most effective method for ensuring the ends of bottom bearing joists are laterally restrained, promoting overall structural soundness.