Floor support for 300 gallon tank

[ricwilli]

I took this pic looking up at the floor joist in the basement to see what you guys think about me adding more support. I added 2x8's before putting up my 215 and so far so good. The red rectangle in the pic represents the 300 gallon tank. As you can see, the tank does not sit on top of the steel I beam. Its probably 2-3 inches off. That's how my current 215 is now. I'm hoping that I can sister more 2x8's instead of adding them across the current ones now with lally columns. So what do you think? Will the floor be OK if I add more 2x8's by sistering them? the span of the steel I beam is 14 feet.

 

[NewfiDog]

If you think you need more, and you seem to be able to add joists you may want to look into engineered lumber instead of the standard 2*8 or even a couple of flitch plates.

 

[armani4o3]

look at my tank build for my 300 how i braced the floor..

Did you find one?

 

[ricwilli]

look at my tank build for my 300 how i braced the floor..

Did you find one?

OK, I'll take a look. Yes, I found one. Did you sell yours?

 

[Imbarrie]

Do you need to brace? Seems to me that those joists are supported by the beam and can carry the weight.