Q: If the joists in a new home are running different in each room, which way is best to install and what are the problems with this?
A: ¾ Thick flooring is to be installed across the joists. For any of the thinner floor types such as 3/8 strip and laminates it doesn’t matter.
Follow-up Q: What do you do if the floor joists change direction on the same level of the house, even in a room?
A: In that case you either have to beef up the sub floor or nail and glue the floor down.