12 year old house - ripping out carpet and installing laminate on whole 1st floor apart from bathrooms - still deciding brand but probably a 10mm cheepo from Home Depot. Floors are good and flat, Advantech flooring - I don't see any issues there. I am getting conflicting info from neighbors (and folk selling the material) on the need for T-molding and my starting position. Some say I absolutely need T-molding on the doorway to the large room, other say the ~40ft span is fine. I also have a similar span from one bedroom across the hall to the other small bedroom. Appreciate any thoughts, and also on a suitable starting position - I was planning on trying to mark out close to equal board cuts on either side of the hall, and measuring back to start in the front bedroom so I can work forward (north in the pic). It certainly would be easier to just have T-moldings on each or some doors, but trying to keep the missus happy - so at least have to ask. Thanks.