What Is The Largest MORryde Sliding Cargo Tray I Can Fit On A Fleetwood Discovery 40M 2025?

Updated 03/18/2026 | Published 03/17/2026

Question:

I am looking for info on the largest slide I can put in the biggest bins of a Fleetwood Discovery 40M 2025. Im not sure if its 33,36 or 39 x 90. Thx!

asked by: Peter M

Expert Reply:

Hey Peter, thanks for reaching out. We will definitely have a MORryde RV Cargo Slide Tray for you, but there isn't a way to look up your camper to know the exact size of the storage compartment opening. RV manufacturers just aren't that specific with their online literature.

If you can take a quick measurement and tell me the width of the compartment opening, that will tell us exactly which tray will fit. You should be able to do at least a 36" x 90" like part # MR38FR but please double check and confirm that opening size.

The MORryde trays are super solid and have a high weight capacity. What kind of stuff will you be storing in the compartment?

expert reply by: Jesse M

MORryde RV Cargo Slide Tray - 90" x 36" - 2 Way Slide - 60 Percent Extension - 800 lbs
(click to enlarge)

Peter M.

3/17/2026

Hi Jesse, I just measured the opening to be 37.5"... so is 36" the best/widest option? Thx!

Jesse M.

3/18/2026

@PeterM Hey Peter I just replied to your email but I figured I'd reply on here too. Yes for a 37.5" opening the 36" wide slide is the largest you can do. Part # MR38FR is what you will want.