Truck cover bed prop

[thedudeabides86]

Hey everybody,

Car show season is finally here in MN!

Would anyone have any suggestions on propping up the bed area of a truck cover to prevent water and snow from collecting in the bed where the cover can sag down? I tried some old tent poles and they just seem to rigid. I placed them in the square holes in the box sides. I've tried PVC pipe with the same result. It pulled the cover up exposing the paint on the panels a little bit. I did store some patio lounge chairs in the bed over the winter and was able to prop them a little bit to keep most of the water and snow off, but I know I could do a little better than that. What does everybody use to prop up that part of the cover? Thanks!