The finished shelf board was the correct size in thickness, width and length after a slight reduction to fit into a desk storage unit, plus it has the same exact finish as the desk. The product was exactly right for my purposes.
I bought these for a Mainstay book shelf I bought at Walmart to add more shelves for my shoes. My husband did have to cut them in length (less than 1/2 inch) to make them fit but they work great.