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#2
06-01-2004, 10:01 PM
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I would highly suggest placing your tank so it crosses as many floor joists as possible. This distributes the load across more support. I had my 46 set up running parallel like you want to do. The floor didn't collapse or anything, but if anyone walked across the floor or bounced (got kids) in the other room, the tank would shake slightly. No big deal but bigger things could happen. I'm thinking you won't be moving your tank for a while and lots of things could happen in the years it will be set up. Top of my list would be earth tremor or god forbid earth quake. Best to have the most support possible.
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#3
06-01-2004, 10:34 PM
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trusses
The problem is there is only one place I can put this tank in my house and that's in my room against the wall. I don't anitcipate any jumping around in the room, but I can't be sure that the bed will never be bounced on. Are there any other options like cross bracing the trusses under the tank?
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#5
06-02-2004, 12:57 AM
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mine is running with the floor joists but i also put a couple 2X12's down to spread the weight. I looked underneith and there were no problems.
Steve
__________________
 *everything said above is just my opinion, and may or may not reflect the views of this BBS, its Operators, and its Members. If cornered on any “opinion” I post I will totally deny having ever said this in a Court of Law…Unless I am the right one*Some strive to be perfect.... I just strive.
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#6
06-02-2004, 01:25 AM
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in response to your original question it's not out of the questions but there are many factors to consider , tank size and weight , how many joist [ not trusses ] that you sit on , [ depending on the joist layout unless you were 14 to 16"out from the wall chances are you are only on one joist , in which case you should at least double or tripple it up , depending on the span of the joist and the joist material as well .
let us know the joist size [ 2x10 / tji / or other ] and span,and how many you rest on [ 1 or 2 ] and that will give us a better idea hth -Russ
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#7
06-02-2004, 01:29 AM
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I had a similar situation to yours.
I live on the third floor of an older wood frame walkup, and was concerned about the floor joists being able to support the weight of the tank and sump. I had a long conversation with a structural engineer and he said the best thing is to build a pedestal out of 2x4's and a 3/4" piece of ply. The closer you place the 2x4's together the better. Basically once the stand, tank, and sump are placed on top of this the weight is dispersed accross the whole area of the pedestal. the larger you make the pedestal the further you disperse the weight. HTH
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#8
06-02-2004, 03:39 AM
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These things are hard to comment on without personaly seeing the structural layout or a sketch of the building framing and tank position with dimensions. IMO the notes already made are well on the right track and if in doubt support from below like a post or column is usually fail safe if properly constructed. Other ideas would be a beam under joists running opposite to joist span direction or adding extra joists members in sufficient numbers.
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