Extruded Polystyrene

I decided the best option was to use a 50mm layer of extruded polystyrene on top of the particleboard base so i could model terrain above and below the level of the track. Extruded Polystyrene was a much better choice over regular expanded polystyrene because of its texture and extra strength ideal for weight support and fireproof, safe for running electrical cables through. Point motors and uncouplers will be buried inside the foam. After much frustrated searching i had found only 2 places in south Australia which sold extruded polystyrene. One of the companies i contacted was very unwelcoming and cold on the phone and when it comes to public service the first thing that turns me off purchasing any goods is the treatment received from staff. The second place however was much more accommodating and within a few weeks they had cut and delivered the sheets. This is how they looked after some final trimming. Eventually hey will be glued in place.