will 220 gallon crash or bent my living room?

  • We are currently upgrading MFK. thanks! -neo
TheCanuck;3844785; said:
I agree , it all depends on how your floor is and the structure of it. The weight would spread out more. Though the calculations i do are my personal safety blanket. If his tank is shorter but still the same gallons , his psf will be more yes. After me ruining the kitchen ceiling i think all tanks bigger than 150-180 should be on the lowest level of the house. What's in your basement!? If i had a basement .... FISHROOM


sorry haven't learned to muti quote yet and is 12:40 am, so i need sleep fast, but umm i meant his tank is 155 gallon my is 220 gallon, though his is the same dimension EXCEPT instead of 72 inch long, is 60 inch long, so that should be same psf right?
 
TheCanuck;3844785; said:
I agree , it all depends on how your floor is and the structure of it. The weight would spread out more. Though the calculations i do are my personal safety blanket. If his tank is shorter but still the same gallons , his psf will be more yes.

With your method of calculations a 200lbs man would exert 200psf onto the floor but it doesn't work that way. The load is supported along the entire length of the floor joists. So if the 6'x2' 2000 lb tank sits across 5 floor joists then each joist supports 400lbs. If the tank were sitting parallel along two joist then each would have to support 1000 lbs.
 
Bderick67;3844809; said:
With your method of calculations a 200lbs man would exert 200psf onto the floor but it doesn't work that way. The load is supported along the entire length of the floor joists. So if the 6'x2' 2000 lb tank sits across 5 floor joists then each joist supports 400lbs. If the tank were sitting parallel along two joist then each would have to support 1000 lbs.

a man does exert 200 psf on a floor. Thing is man doesn't stay still. Then when he sits in a chair or lays in bed his weight is spread out. thats why sleeping in the same bed for 10 years on the top floor you wont fall through the ceiling. I see what your saying , but that 200 psf is still there no matter how you spread it. The floor does its best on spreading the weight over the whole floor but house just arnt made like they use to be

atleast this is what my home builder told me , along with making me feel really stupid for putting my fish tank upstairs
 
Bderick67;3844809; said:
With your method of calculations a 200lbs man would exert 200psf onto the floor but it doesn't work that way. The load is supported along the entire length of the floor joists. So if the 6'x2' 2000 lb tank sits across 5 floor joists then each joist supports 400lbs. If the tank were sitting parallel along two joist then each would have to support 1000 lbs.

hey, i have read the link you send me, i've understand alot with it, so it doesn't seem so bad, but i will take caution and put sister joists, but there are still some confusions, so i will be looking at this post for some actual experiences and tomorrow i will be doing the calculations, because i'm way to tired to care for this right now :P good night all :)
 
12 Volt Man;3844844; said:
thanks. so typically a 6 foot tank that could weigh 2200 pounds (if its a 220) will only have the weight mainly carried by approximately 4 floor joists? wow.

even if this wasn't directed towards me (i dont know if it was) i feel dumb. Haha i am confused now, i was just told this information by my house builder.

ill now sit back and :popcorn:
 
TheCanuck;3844827; said:
a man does exert 200 psf on a floor. Thing is man doesn't stay still. Then when he sits in a chair or lays in bed his weight is spread out. thats why sleeping in the same bed for 10 years on the top floor you wont fall through the ceiling. I see what your saying , but that 200 psf is still there no matter how you spread it. The floor does its best on spreading the weight over the whole floor but house just arnt made like they use to be

atleast this is what my home builder told me , along with making me feel really stupid for putting my fish tank upstairs

Do you know which way the floor joist were running? I tell ya what, your understanding of this is off, no offense intended. But I guess I could just be lucky and not know what I'm saying. Though I do have a 450g tank currently sitting on the main floor above a basement, plus a few other tanks in the room. The house is 6 years old. And yes it is reinforced. Trust me though I've done more then my far share of researching and talking with structural engineers on this.

And yes houses aren't made the same, they are now engineer to actual specifications and better built. Do some research on the TGI engineered floor joist that are now used in new home construction, you'll see what I am talking about. My floor joist are on 24" centers again this is possible because of the TGI joists. Would love to chat more on this, but gotta get up for work in about 6 hours.
 
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