I have no idea why with a 13” deep drawer you need to have full extension glides .So maybe show pics of what you need to access. I have never had this issue for any of my clients with Pax

Because the drawer box roughly pulls out 7ish inches and I would like to have it pull out all the way with full extension slides. It’s simply a personal preference that I want the entire drawer boxes to extend.

Trying to figure out the same thing. I'm not worried about it length-wise. It should be fine as long as I can find drawer slides that are roughly the same length as the drawer. I'm more concerned about the width. Most side mount full extension ball bearing drawer slides are about 1/2" thick, and I'm not sure if the PAX frame offers enough clearance...

I'll save you the nightmare. It doesn't. Or rather it does if you don't have doors on your pax. If you do, you'll need to do some serious hacking.