It looks good.

3M contact cement will hold the ends together.

That type shelving board will work for a while. The glazed coating will eventually wear to the wood and it will be some drag and some eventual snagging. (Spent a number of years in the evolution of my own versions of the carpet mill). Don't scrap it though. Go to Stockcarproducts.com or Performancebodies.com. Race car publications that offer a rolled plastic. Usually sold in length of 10ft. Cut it to fit and it will last a lifetime. Cheap too.

Looks good.EWO