I put this cabinet in my converted campervan. It fits just perfectly inside of 48in cabinets from Flatline Van Co! To secure it, I had to drill through holes in the cabinets, but that was pretty easy all things considered. It has enough vertical clearance to open fully in the cabinet as well!
I have two 15in MacBook Pro laptops. It's a big snug on the way in, but the laptops will both fit! This was crucial for me - I had to secure my work & personal laptops while on hiking trails.