Following on from my earlier Blog post, I knew that I needed to make the baseboard lighter and set about cutting unwanted segments out of it. I used a 20mm drill bit and a jigsaw to cut out segments that would not interfere with the track plan or wooden supports.
I continued to remove more and more of the chipboard, knowing that every piece taken out would make the layout easier to handle.
Eventually I had the final cut-up board, but still maintained the strength and rigidity.
The baseboard is 1220mm wide, 800mm from front to back and 40mm thick (the chipboard and the wooden supports).