Hey guys, I need help! I am designing a train room for a little boy and I have no idea about trains. I want to run a track around the room on a shelf. I have no idea what size train I need and I'm not very good with the train lingo so please bare with me. As for the room, I have attached a drawing of it. I really need to know if I'm on the right track. (No pun intended ) Any info would be much appreciated. I realize I might not have given you guys enough information, so please ask me anything that would help. Thanks a lot!