Most modelers show pictures of building their layouts. I on the other hand am posting pictures of taking down the layout. I am doing this to show the construction method.
This layout started out as 3 Tinplate trackers modules. We moved and added many more that I would take to train shows. After a while I came up with a 2x3 inch grid that the modules rested on. this meant I didn't have to add the legs when I set it up at home. We then moved again and we were able to quickly put it up using the modules on the grid. When you look at the walls you will see two sets of mountains one above the other with sky in between. This was because when I first set it up my son was in kindergarte We then had to take most of it down to put a new fuel tank in the back corner. By now my son was in high school so we raised the layout. All we had to do was use longer legs.
You can see pictures of my first and 2nd layouts on my web page.http://www.modelbuildingservices.com/layoutnew09.html
I have written descriptions for the pictures. just click on the picture to see them