Hi Gary

The material above the work bench and the wall is called Slat Wall. It is designed so you can hang various storage accessories for tools, ladders, garden tools, hoses, shelves, boxes, etc. The material is made of PVC and is very durable. Our supplier for this material and storage accessories is Handi Solutions --the link to their site is----Handi Solutions If you see anything you like or would like sample please let me know, we are distributors for this company and can have orders delivered to a customer's address. If you are in the Madison area we can install the Slat Wall.