How Much Waste For Herringbone . For a herringbone tile floor or wall, the most obvious variation lies in the orientation. Then, add 10 percent to your number. MSI Portico Herringbone 1" x 3" Ceramic Mosaic Tile in Pearl/Beige from www.wayfair.ca How much waste is there with herringbone pattern? Waste % overage for herringbone pattern tile. We generally like to recommend that you order a 15% overage, but 20% is a safer bet if you are going more geometric.