Thanks! That helps a lot! However that brought up another question. What is the overall width of the Lionel FasTrack? I've read that the width of the track bed is 3.5" inches. Therefore, there is 1.125" then a rail to rail width (inside to outside rail) of 1.25" and then another 1.125". So in the above example, I'd have to plan about an overall 5.5" width, 3.5 for the track and 1" on each side for cushion.