I'm started to plan my Z scale layout, in part based on what I was planning for my N scale version. Back then, I bought some foam boards (isolation foam) of the white variety, 10 cm thick, to use as the board. It was to be placed on shelf holders mounted on the walls. I still have the shelf holders (some have to be moved) and the foam boards. The boards need to be cut to the new size to fit into the walk-in closet I'm going to use as my railway room. The question is... will the foam boards be too thick? I'm planning to use Märklin turnouts, and move the mechanism below the board, and then there are the electrics for lights and so on. I'm planning to at least initially, move the turnouts manually with the help of bike spokes. Or would it be better to get the powered turnouts instead and use the solenoid under the board as I read on the Z-scale DIY page? Does that impact the choice of baseboard as well? MDF is too expensive, and I don't have a car so getting large sheets home on the bike is a bit tricky. Input is appreciated!