I have a Mikey's RC FPV on my shop table right now. I built it using Elmer's foamboard from Michaels. From what I've read it's heavier than Dollartree board.
Today I picked up 8 sheets from Dollartree. They are also Elmer's brand but feels significantly lighter (also less substantial) than the Michael's board.
I've attached a shot of the label from the stuff I picked up today. Is it what everyone else is using?