Stopping items from tipping and slipping through the gaps of your24"d wire shelving, these gray poly wire shelf liners create a solid foundation for your storage needs - whether in your warehouse, office, or home. Select the right size by matching the liner dimensions to the depth and width of your wire shelves. .025" thick polypropylene construction Moisture and chemical resistant Liners are cut-to-order and arefinal sale. Please measure shelves and see Product Details section below for exact sizing. To accommodate accessories used on wire shelves, liners must be custom cut. Please note in order special instructions box at checkout if needed.