Made for use withside panelsand providing a smooth, solid surface that contains organized items, these plastic wire shelf liners make your 18"d x 48"w wire shelving into a more versatile storage solution. 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 shelf prior to purchasing.