Macrolux Multiwall Polycarbonate Sheets. Offering a vast range of sizes, colour options and thicknesses. With a multitude of applications from popular DIY projects - including Car Ports, Greenhouses and Conservatories to Pedestrian Walkways, Swimming Pool Covers and Industrial Projects. Added benefits of Macrolux multiwall polycarbonate sheets include long life co-extruded protection from the effects of UV weathering, high impact resistanceand excellent fire performance.