11 weeks old,no problem.. we purchased a cage,big enough for trish for when she's an adult,we keep it next to our bed,we keep her in the cage when no ones home,and at night,she does not have the run of the house when were sleeping,they put up a fuss for around a week,then they depend on the cage,they will not use the bathroom in the cage,unless they cannot hold it anymore,when a young pup,take out of cage every 2 hours to pee,do not let them walk to door,carry them and place them outside or on paper,whichever you want to train them to use,after around 3 weeks,trish has learned to whine when she needed to go out(when shes in her cage),starting low and getting louder if you don't respond, trish is now 3 years old and when its time for bed,she will go to the cage herself,we go behind her to shut the door. she is a very happy boston and loves her cage,sometimes when she wants to nap,she goes into it to have her nap.of course its lined with a pillow and her own disney blanket.of course we have a doggie door and she uses it now,we only have to let her out of her cage when she whines at night,and she uses the doggie door,she has the run of the house during the day and of course,she uses the doggie door on her own., never uses the house for a bathroom,the cage is the way to go to potty train.. //this has also worked for sister inlaws dog,not a boston..they will love the cage after potty training...
