Indeed, residential windows
the good thing is the ambulance walls are 2" thick so it's quite easy to adapt these windows. I still need to fab the aluminum frame but that's not too bad. I think i could do the same for a regular van, would just need to figure the interior framing.
I much prefer these over the RV windows as they insiste much better...
Glad to see the interest, these are awesome vehicles to modify!
The box is 5'6" minus whatever finish is used. In my case I'm putting a 3/4" spacer between the aluminum studs (beams) and 3/4" cedar planks do I'll lose 1.5" The good news is that by building my poptop I'm gaining a bunch more in the "high traffic area", it will likely be between 5'8" and 6' tall.