You may have to chisel out a portion of the stop to get it to fit with the head jamb and/or threshold. Predrill nail holes about every 12 inches down the length of the jamb.

When Rescue Is Necessary. When an elevator technician isn’t available, consider the following rescue options: • Fire service Phase 1 ...

You may have to chisel out a portion of the stop to get it to fit with the head jamb and/or threshold. Predrill nail holes about every 12 inches down the length of the jamb.