i was recently in in a comic book shop looking around when i came across the backer board storage section. i was wondering if anyone has tried using backer board in their models. this card was very still and i thought it would make great bulkhead material as well as work for some larger models. i was particularly interested in the Magazine backer board as it comes in 8.5x11. they only had a few so i special requested a pack for testing purposes. the price on Amazon varies from $17 to $25 per 100. most are .25mm thick and acid free. the ones i checked out had a smooth coated side which might be good to print on and a slightly rough side. when i get my stock i will post back on how well it works out.