Why are squash blocks used in construction?

Squash blocks are specifically used in construction to prevent buckling, primarily in the context of framing and structural elements. These blocks are typically made of solid wood and are installed in areas where vertical loads are concentrated, such as beneath beams or at the top of walls. Their primary function is to provide additional support and stability to structural members, ensuring that they can withstand the forces placed upon them without deforming under pressure.

When installed correctly, squash blocks help to distribute loads more evenly across the structure, minimizing the risk of buckling that can occur due to excessive weight or improper load distribution. This enhances the integrity and safety of the structure overall. Thus, the key reason for using squash blocks lies in their role in maintaining structural stability and preventing potential issues associated with buckling.