Disclosed is a lockable pipe shield for a pipe support assembly, a pipe support assembly, and a method of securing a lockable pipe shield to a pipe hanger. Example aspects of the lockable pipe shield for a pipe support assembly can comprise a substantially semi-cylindrical shield body defining a first shield end, a second shield end opposite the first shield end, and an upper shield edge; and a lock tab coupled to the shield body at the upper shield edge, the lock tab bendable relative to the shield body between a first position and a second position, wherein, in the first position, the lockable pipe shield is in an unlocked configuration, and in the second position, the lockable pipe shield is in a locked configuration.