Avoid these people. Their idea of customer service is "you are wrong we are right" and we don't care if we made a mistake.
The sales person told me, no problem we do this all the time. He was over the top with how competent they were with my type of walls. Apparently there was a problem. Their solution is for me to put the latch on the outside of my gate. So when I want to go out, I need a step ladder so I can lean over and unlock it from the back side. How do you think that will look with the padlock on the outside? The customer service "Jennifer" manager's idea is "well you need to replace your wall then it will work." She refused to problem solve; just put the latch outside that's it.
Just know these people are hostile if there is any issue even if the salesperson promises it all great.
Do yourself a favor find another company.