When I needed new cushions for my CD 28 I measured the length and width and purchased foam from an upholstery store. Then I bought Sunbrella in a color I liked and hired a seamstress to sew them. She was able to tell me what yardage I needed, etc. She did a beautiful job and they look great. Total cost was about $300 for 3 long cushions in the main saloon. Two were for the seat and one for the back of one of the seats. They're made with zippers so I can remove and wash them when needed.