large tank on main floor ? anyone help

[brizzo]

Originally Posted by doch

This is a resting weight... no bounce or momentum involved. You'll likely still get some flex, but not the same as a person bouncing along the floor.

The terminology is live load vs dead load, if you weren't sure

But you are correct, the difference between load types is exponential.

[Coleus]

I have 155 main + 33 sum on my main floor. It is perpendicular to the joists and near the outside wall. I did not see any problems for couple months but then i got a contractor to do Joist Sistering to be safe. I probably going to build a support beam underneath once i figure out what i want to do with my basement. Be safe than sorry :-)

130 gallons is a lot heavier than the average person.
I beg to differ on this statement 130g tank weighs about 1300 pounds when not in motion when you walk by it it goes into motion. As far as being OK to have on main floor I would only put it where a bath tub would be or in a alcove as those areas are made to hold extra weight also the main supporting wall that runs the length of the house is mad to support extra weight. if you have the tank perpendicular to the floor joists they will hold more weights you are distributing the weight over more floor joists a 6 foot tank is over at least 4 floor joists. I would phone a engineering firm and ask to talk to someone about the situation you have. now if you can have the tank perpendicular to the joist and on top of where a wall is down stairs it would be OK then I would think.Or put it where the utility room is and have telescoping posts put in below the tank that should be goodI would think, but I am not a structural engineer.

Bill