door panel 12 can be accomplished by various means fig9 illustrates one example manufacturing method one horizontal edge of each baffle 26 is melted or ultrasonically welded to first sheet 28 thereby creating a plurality of fused joints 42 between sheet 28 and each of baffles 26 fusing baffles 26 to at least one of sheets 28 and 30 is schematically depicted by the block at reference number 44 of fig9 alternate methods of attaching baffles 26 in place include but are not limited to bonding taping sewing fastening via hook and loop fastener riveting etc an outer perimeter of sheet 28 is fused sewn or otherwise connected to sheet 30 as schematically depicted by the block at reference number 46 of fig9 the plurality of baffles 26 are installed between sheets 28 and 30 as schematically depicted by arrow 48 and insulation pad 38 is installed within chambers 34 as schematically depicted by arrows 50 the example method represented by the block at reference number 44 and arrows 48 and 50 may be done generally together in a progressive sequence from one end of door panel 12 to another or in any other suitable order fig9 for example shows door panel 12 being assembled progressively from the bottom up sheets 28 and 30 when made of polyurethane have significant resistance.