This 54" non-perforated white color material is used for outdoor seat and cushion underlining. It is mildew and rot resistant. Our underlining is great for marine applications. This item is sold by the yard. *All products 48" and up are subject to a required additional handling fee charged by the carrier. This fee applies only once per order and does not stack. Example, you buy 3 products over 48" there is still only a 1 time additional handling fee.