Overall measurements are 27-1/2" wide x 35" tall x 1"deep.
Frame is extruded Aluminum. Doors are made of Fiberglas with aluminum framing.
These would make easy installation to your trailer project. Just add the door latch of your choice.

EDIT:
These are test-fit doors that were installed and removed.
Easy installation.
$60 pair, plus $16 shipping per pair to lower 48 states.
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I using these type doors on my TD build and installed a Push-Button Slam-Latch on them. They are 40" tall and 29" wide.
See my doors below. I will be installing a window on each door.