How to find out if a second floor can hold a large tank?

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If the tank falls through the floor or if the whole house implodes then you have your answer...no, no it can't support a large tank. If no crash/boom then yep you're fine.
 
My flooring is wooden. (not really sure what you mean) and the wood is all running the same direction


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Well typically hardwood floors run perpendicular to floor joists as well. But this is by no means a sure fire way to tell
 
You would be fine as long as you run the tank perpindicular to the floor joists and the tanks are not over 18" in depth or over 24" tall. I.E. a 48x24x24" 120g tank could be a problem, whereas a 72x18x22" 125g will be fine.



Riiight!!! :duh: I just guessed when I put a 450g tank I my wood framed floor
In germany there is a law that if you do that and something happens and anyone is hurt, then you go in prison for killing someone. As i said, i would not take the risk. It does depend on static, how the house is build, age, material. What is fine for one house can anotherone cause to collapse.
 
I dont believe there was a building code for the era,however if you are able to see any of the structure,ie:the bastement ceiling joist's ,you can probably get a pretty good idea that the rest of the house will be built the same way,if it looks solid and well braced i would be confident that you could fill this tank,keep in mind that the entire floor is all tied together and
The wood would have to be pretty well rotted for your tank to just fall through


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I dont believe there was a building code for the era,however if you are able to see any of the structure,ie:the bastement ceiling joist's ,you can probably get a pretty good idea that the rest of the house will be built the same way,if it looks solid and well braced i would be confident that you could fill this tank,keep in mind that the entire floor is all tied together and
The wood would have to be pretty well rotted for your tank to just fall through

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Hello; I believe the point of some of the cautionary posts is that the strength of a structure cannot be guessed at. Someone is going to actually have a close look. It will likely be best if that person knows enough about structure to have an informed opinion. The only way to know is to have a look. If a member does not have experience with floor structure it may be best to get someone who does.
The house appears to be old and many things can happen over time. I had to repair damaged floor joists in my current house after discovering that some were notched by a previous owner.
Insects and rot may be present. I passed up a house when I discovered powder post beatles in all the floor joists.
It is also my understanding that structrual damage from too much weight is more often the sagging or deformation type, rather than collapse of the structure. That type of damage can be expensive to repair.
 
Hello; I believe the point of some of the cautionary posts is that the strength of a structure cannot be guessed at. Someone is going to actually have a close look. It will likely be best if that person knows enough about structure to have an informed opinion. The only way to know is to have a look. If a member does not have experience with floor structure it may be best to get someone who does.
The house appears to be old and many things can happen over time. I had to repair damaged floor joists in my current house after discovering that some were notched by a previous owner.
Insects and rot may be present. I passed up a house when I discovered powder post beatles in all the floor joists.
It is also my understanding that structrual damage from too much weight is more often the sagging or deformation type, rather than collapse of the structure. That type of damage can be expensive to repair.

The original post states there is currently 1000 lbs approx in 1 general area,and he wants to put a tank of perhaps 200-300 lbs more in that location.whats the diff?


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