Hello Debster, 13oz Scrim Vinyl is somewhat thinner when compared to the Matte. It is a strong, water-proof product. Has a smooth floor Usually observed on billboards and for each indoor and out of doors use. 18oz Matte Vinyl is thicker and a lot more durable; lasts five yrs outdoors. https://www.bannernprint.com/blog/what-is-step-and-repeat-backdrop/