Depends on subflooring material. Have 2 rooms of 3/4" oak flooring that has
to be redone because it was not perpend'r to joists. This was over 5/8" ply
and the hardwood planking is starting to swell and lift which results in
'speed bumps' all over the floor.
Could be due to moist indoor air and swelling of wood?

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Remove the obvious to reply. Experienced and reliable
Concrete Finishing and Synthetic Stucco application in the GTA.
"Edwin Pawlowski" wrote in message
m...

wrote in message
I just finished two rooms with hardwood flooring. I was told that the
flooring should go perpendicular to the joists. In one room I
remembered that. In the other I forgot.

The floor is nailed to the subfloor so it is not a question of falling
apart. I'd run it the way it looks best. This has been discussed before,
but there has been no evidence of any problems going in a different
direction.