Headliner material ?

[Tzummie]

What's the headliner made of? It looks like some sort of sandwiched polystyrene foam, between two layers of carton? What could I replace it with?
thnx.
T.

[jtr]

I replaced mine with indoor/outdoor carpet from Lowes.

[irmosc]

A type of fiber board. There is a vendor here in the vendor section that makes replacement. Also, most upholstery shops will have it and sell you blanks.