mounting paper maps

[wes70]

I need suggestions on mounting 3'x4' paper maps to a "somewhat" rigid substrate. I was thinking of 3/16 adhesive foamboard (easiest) or mounting the paper to 3mm pvc with spray adhesive, but not sure about the expansion rate difference (indoor) between paper and pvc. Any suggestions?

 

[d fleming]

Adhesive backed paper, adhesive faced substrate or mount adhesive using laminator to substrate then mount print.