Quoted from Pin_Guy:Confirmed by pinsider Mike_M in MMr unboxing thread https://pinside.com/pinball/forum/topic/mmr-unboxings/page/83#post-3392891
Picture:
https://i1.pinside.com/b/a0/ba0e83029acd94ac6173271604786b7270f48da8/resized/740/ba0e83029acd94ac6173271604786b7270f48da8.jpeg.jpg
That be plywood
I confirm my confirmation. Standard Plywood; quite nice. Already has holes and T-Nuts for shaker motor as well.