Free to a good home. Well used and a bit frayed on the edges, but still does the job. Opens and gives lots of storage too.
36 x 28 and 19" tall. It's quite heavy and I have severe arthritis so I won't be able to help you load it. I'd recommend 2 people and a truck or SUV. Not going to fit in a traditional trunk. Hatchback maybe.
If you'd like it you will pick it up at my home in the San Marin area of Novato.