Well, I've decided to take the plunge and make my first layout, which will be the first for me in more ways than one, as due to space restrictions, it will be a European layout in Z scale, rather than British steam in 00 that I grew up with. The space I have limits the layout to a maximum of 110 x 43 cm (A bit under 43.5 by 17 inches), and to aid in the saving of weight, and the construction of scenery, will be made of closed-cell extruded styrofoam, 4cm (an inch and a half) thick. I've already acquired two locos, a BR class 24 2-6-0 and BR 74 2-6-0 tank engine, which will be made to look like they were when first built in the DRG in WW2, and I also have rolling stock in the form of three 3-axled coaches and flatbed freight cars with caboose, all made by Marklin. The track plan is fairly simple, being a long oval with passing loop on one side, and a siding on the other, so that I can incorporate a small station and freight depot within the layout. There will even be space enough for a few buildings within the oval, and a tunnel at one end, with a bridge/viaduct at the other. To keep dust off the finished article, I'll have a clear acrylic display case made for the layout when not in use- all electrics and track will be from Rokuhan, as I like the fact that the track is pre-ballasted and the electronics are modular and easy enough to install. Does anyone think I will have any issues with warping or anything else due to the basing material, or should it be OK without any major bracing? The display case will have a base made of 5mm thick acrylic that I can secure the baseboard down on, so hopefully there won't be any issues. Any feedback and suggestions would be welcome.