(A) Yes,a pocket door can be locked using a Privacy pocket door pull ,but this pull is not a secure lock. They do not make a secure lock for pocket doors that will lock a pocket door securely. And if you happen to have a set of double pocket doors the Privacy will not work. The two interfere with each other , their is no place to put the strike plate on the other door. The only locks we sell for a double door is a Mortise lock set that comes from a company called Gruppo Romi . www.pocketdoorproducts.com then go to pocket door pulls - heavy duty pocket door pulls -