Replacing a flat TRAILER window: is auto glass what I need?

opnspaces wrote:
You want standard tempered glass...

Well--the OE glass was not tempered, else it would have shattered into bits instead of cracking.

I would take the old glass out, take it to the glass shop, and let them tell me what it is.

If laminated safety glass will fit in the frame, it would be a very safe choice. I would much prefer that in a front window, even one protected by a shield, than plate glass.