I bought one piece of aluminum U section about half inch crossection, cut it into four equal lengths, filed the cut edges smooth. Drilled in each piece two holes to take screws, but had to drill the opposing hole bigger to take screwdriver, secured these with screws to the underside of the laundry hole with the open side of the U section facing away from the hole leave an inch gap between the corners.
Then buy a netting type laundry bag with draw string from Walmart and fit around the Aluminum frame you have just made, draw tight, and its all done. The draw string has a plastic stopper so it can be put on and off quite easily. We have been using ours with great success!
Nigel & Bev
Brit Driver & Canadian Naviguesser
2011 Rockwood Signature Ultra Lite 8280ws
2011 Dodge Ram 3500 4x4 Diesel