My wife and I are redoing our basement. We started from scratch. Just got done with the drywall, about to tackle flooring. We don't have any doors or door jambs installed yet. We're using the same tile floor through the whole basement. Do we need to put thresholds under each door? Or just where we might change the pattern of the tile? We have 3 doors down there, but the tile will be the same on each side. Thanks!