Ok, just asked a few questions on hot glue guns and now have questions on which foam to use to build my layout. I plan on using the blue 1/2"  2 layers thick as a base and want to know what foam to build the rest of the layout with. I have the woodland scenics foam cutter to sculpt it but I need to know which foam to get.

Home depot sells a product called handipac which looks like it might work well and a product called PlastiSpan HD.

Has anyone used these products and will they emit toxic fumes when I cut them with the hot wire technique?

I have a spur leading into the side of a brick structure on the first floor which leaves very little clearance for road vehicles delivering to the docks directly below it.

So far I've been messing with, I think, Atlas N scale girders to sit above tie height. I know in country New South Wales they used timber trestles through some towns.
I'm modelling around N/E US in an urban area. Does anyone know of a steel trestle? Just like the timber ones of old, but all steel in a industrial complex?

Earlier I had posed the question wether or not Stone dust or Jointing sand would be usable for ballast, and after some great responses I decided to get some and try it. I ended up getting a 20kg bag of jointing sand (the stone dust appears to coarse for HO). So I get home, grab a bucket, open the bag and...

It's all CLUMPED!!! I will have to dry it out before i can use it, Any recommendations for drying?

Hi All

I'm finishing construction of a scratch built tipple, and want to put a tar paper roof on it. Its HO scale, I'm not sure what to do now to make a decent looking tar paper roof. Any thoughts?