Can I put a 120 gallon upstairs without worrying?

[ILIKECOUGARS]

Originally Posted by Delphinus

FWIW, they're installed parallel in my house..

Hardwood flooring should alway be installed perpendicular or diagonal to the floor joists. This is what I was told by a saleperson that sells hardwood flooring

[Delphinus]

Not necessarily. I think it's just "better" to install perpendicular but not "necessary". Or maybe depending on age of house or subfloor material it might become necessary.

http://ca.answers.yahoo.com/question...2080410AAR7alg

The only point I really wanted to make is that it's better to check/confirm before acting on assumptions, particularly when it's easy enough to get a definitive idea where the joists run.

[Gary]

I was trained that it should be installed perpendicular if possible, but if it is new hardwood over old hardwood, to run the new stuff at 90 degrees to the old.