Ends of bottom bearing joists are normally laterally restrained by which method?

• A. Toenailing
• B. Metal straps
• C. Solid blocking
• D. Caulking

Answer: (C)

The method of using solid blocking to laterally restrain the ends of bottom bearing joists is significant in construction and structural engineering. Solid blocking is typically installed between joists, providing additional support and preventing lateral movement. The solid blocking fills the space between joists and works to distribute loads more evenly while also reducing the risk of twisting or buckling under load. This means that the integrity of the structure is maintained, and the joists are kept in their intended position, supporting the overall stability of the floor or ceiling they are part of.

In contrast, the other methods listed have different applications or do not provide the same level of structural restraint. Toenailing primarily focuses on securing joists to beams or framing but does not provide lateral support. Metal straps can also offer support but are not typically the designated method for laterally restraining the ends of joists as solid blocking does, which is specifically designed for that purpose. Caulking is generally used for sealing gaps and preventing moisture ingress, not for structural support. Thus, solid blocking is the preferred method for achieving lateral restraint at the ends of bottom bearing joists.