A place to buy rv ceiling panels?

Sometimes you can order larger bulky items from the factory and have them shipped inside a new TT that is being delivered to the dealer. We had that done once with 8' long pieces of trim wood. I would guess that a dealer large enough that does more major type repairs would have it in stock.

You might try asking a local specialty plywood if they have or can get some thin plywood with a similar finish. The only problem there might be getting some of the adhesive backed tape the factories use over joints in a color to match.

These guys sell RV ceiling plywood. all-rite.com The shipping cost would have to be crazy expensive for 4x8' sheets.

Local rv dealer (Greencastle, Pa) has it. $64 a sheet 4x8

I think your best and quickest bet is to call the Manufacturer of the trailer you are working on and talk to either their Purchasing Department or the Engineering Dept. Get the name of the company who made the existing ones and go to them. Two phone calls will have you an answer.

Check around with the dealers, one might just have some in stock, also the places that sell discount building supplies may have what you are looking for.