I think it would be fine as long as the plywood is thick enough. I wish I could do that in mine. But my slide is just wide enough at the head for the queen. Anyway, I think yours should be fine as long as it fits in the slide (if that's where it is).
Ed and Sharon
2010 Wildcat 28RKBS
2019 Ford F-250 XLT - AWESOME Truck!
I thought I was wrong once, but I was wrong!