Where to get heavy black cardboard?

jjbubaboy

Next project is to replace some of the trim pieces around the wood window frames. It appears the ones that were there (what's left anyway) were made out of the heavy cardboard like the glove box is made of. Anyone know WHERE to get something like it in a sheet form?

Thanks!

Jeff

JFromm

Got mine from an upholstery shop.

cricket

restoration supply, Pennsylvania.