In most RV's the platform is the same for queen and king. The difference is the plywood on top that holds the mattress. Most RV's you can get either a king or queen. All you have to do is cut down the plywood to match the queen mattress. We just did that in our new Silverback to give us more room to get around the bed. Oh, and it is just he sides you have to cut cause the length is the same....Notice I said most...lol so just check to make sure it's gonna look good and you can do this...
From Central Texas
2014 Cedar Creek Silverback 29IK
2010 Dodge Laramie 3500 Dually
My Steelpony....2007 HD Ultra Classic...done up in a memorial to the 343 firefighters who died 9/11
Never Ever Forget....yes I was a Volunteer FF for 20 years........