The left and right sections will be joined by a center section -just slighly wider than one of the individual verticle sections. ie..there will be five sections allthogther. The center section of the crwon will aslos protroude out ward an inch or so.... This will be a tricky thing to join the crown profiles on the left, center and right all over a floor that is 130+ years old! stay tuned foir the fun....