I've used a piece of 8 feet x 20 inches rubber conveyor belt for the last 10 years and it's been a good medium to cut on as I turned it over when one side was too bad but it has seen it's day and I just bought a new board, HDPE, 10 feet by app. 5 feet x by a quarter of an inch. It wasn't cheap, $234.00, but it is cheap compared to conveyor belt, which was $128.00 for the size I was already using. I haven't got around to putting it on the table yet but will this week.