21RBSS door frame size

I'm getting my 21RBSS hopefully next month and I'd like to go ahead and order a screen protector for the door screen. (LOL my dogs are coming on the trip to pick up so it needs to be done before anything else!) The Lippert one requires a measurement of the door opening. Is anyone able to provide this info or measure theirs?

(Sorry, wrong forum, i can't see a way to delete?)

Screen Defender.PNG


Well-known member
call Heartland customer service with the last six numbers of your VIN handy, they should be able to tell you