Home Sheet, Rod & Shapes Polyethylene Sheet, Rod & Shapes High Density Polyethylene (HDPE) Sheet 1/2" x 48" x 96" HDPE Sheet 1/2" x 48" x 96" HDPE Sheet Item 46016 $367.16/Sheet Add to Cart Buy in Quantity & Save! Overview These sheets can be heat formed, shaped and welded to fabricate ducts, hoods, and much more.