Improve organization with these durable plastic wire shelf liners, precisely sized to provide a smooth, solid surface on12"d wire shelving. Keeping items stable and from slipping through the gaps, this accessory will instantly upgrade your storage. Select the right size by matching the liner dimensions to the depth and width of your wire shelves. Durable, 1/8" thick PVC construction Rounded corners position around posts Holds up to 300 lbs, evenly distributed 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.