Ok, After my own post, I just found this one. Are they really cardboard? What holds them in? Can anybody make a pattern or give me dimensions? I've got a CAD system and can make a pattern drawing. <br><br>If it's really cardboard, wouldn't foam core board from a craft store be better? It comes in different thicknesses and in large sheets. Cut it out yourself with a razor knife.<br><br>Is there room for that silver reflective insulation between the roof and headliner? Seems a natural.<br><br>Dan<br>