I have started to build the framework for the upper level of the new layout. I use the traditional way to build a layout, using L-girder beams, 45x15 mm and 9x33 mm. This make a very strong, slim and light base for the tracks. The framework is constructed of 3 frames, screwed together. Tonight the middle section is installed and one of the other is in construction. I must buy some more lumber tomorrow.
I have also done a lot of changes on the trackplan the last weeks, check it here.