This hot tub cover is 82" square and 5"- 4" thick. It is old and very heavy. However, as you can see from the pictures, it still has insulating properties. It was once a very expensive cover- about a thousand dollars. It doesn't look great, there are two peeling vinyl panels that I used contact cement to glue down last year. I have purchased a new cover but it has not arrived yet. Until it does, this cover is being used. The day it arrives, I will contact you if you have expressed an interest. If it is not gone in a day, I will cut it up and take it to the dump. If you need a cover for temporary use or if you have no budget for a new one, this might be your cover. Cheers-