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Old 12-22-2008, 11:34 PM   #1
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birth-pool weight concern


This is a serious question, id be happy to discuss the homebirth process, but I'd really like to come to a conclusion as to whether my floor could support the weight of a birth pool. An without researching engineering specs, i'll ask it here in the hopes that some experts might chime in.
-figure about 2000 lbs to be on the safe side,

-i do not know what type of wood the floor or the rafters are.
-rafters, actual dems 1 5/8 x 9 16 o.c. old ass, light of a century old but, seemingly sound. The house itself is very solid.

The floor is hardwood planks. not sure what type of wood.

There is a room across the hall with a bearing wall underneath that would for sure work. but we would rather put it in Our room where the pool would be close to, but not over a bearing wall.

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Old 12-26-2008, 09:05 PM   #2
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birth-pool weight concern


Quote:
Originally Posted by grizl View Post
This is a serious question, id be happy to discuss the homebirth process, but I'd really like to come to a conclusion as to whether my floor could support the weight of a birth pool. An without researching engineering specs, i'll ask it here in the hopes that some experts might chime in.
-figure about 2000 lbs to be on the safe side,

-i do not know what type of wood the floor or the rafters are.
-rafters, actual dems 1 5/8 x 9 16 o.c. old ass, light of a century old but, seemingly sound. The house itself is very solid.

The floor is hardwood planks. not sure what type of wood.

There is a room across the hall with a bearing wall underneath that would for sure work. but we would rather put it in Our room where the pool would be close to, but not over a bearing wall.
There are span tables online that can give you some idea of what load your floor will support per square foot. There are also folks on here that know all of this really well.

You are speaking of floor joists I assume. Rafters are in roofs. Sounds like you have 2"x10" joists.

The thing you didn't mention that is critical is the span of the joists, how far they run unsupported.

Also, the way the pool distributes the weight will make a huge difference. If it is putting all the weight towards some "feet" or pads on the tub, it will require a different level of support than a tub that spread out the weight over say a 20 sqft area.

Does the manufacturer / retailer of these units have any guidelines to help you or at least information talking about the weight of their unit with and without water in it?

You might be able to put a temporary beam / floor jack in the basement.

Jamie

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Old 12-26-2008, 10:50 PM   #3
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birth-pool weight concern


Jamie's got it right. In most cases, installing a 2000lb (somewhat concentrated) load on a floor system that wasn't designed for it is going to be a problem. Very short joist spans would be the only exception. There are ways to deal with it but they'll be invasive and fairly expensive.
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Old 12-27-2008, 05:20 PM   #4
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the total span is about thirty feet, but the pool would be within a couple feet of a below bearing wall.
There is no way to support underneath because it is on the second level of our house.
The pool is not on "feet" so the weight would be distributed evenly.
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Old 12-27-2008, 05:51 PM   #5
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Can you "birth" in the basement?
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Old 12-27-2008, 06:11 PM   #6
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It would be cheaper to birth at the hospital than it would to reinforce the floor.
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Old 12-27-2008, 07:08 PM   #7
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Originally Posted by grizl View Post
the total span is about thirty feet, but the pool would be within a couple feet of a below bearing wall.
There is no way to support underneath because it is on the second level of our house.
The pool is not on "feet" so the weight would be distributed evenly.
I'd expect the cost to be significant to make the necessary changes. An engineer would have to be hired, walls / floors / ceilings removed, etc. I would not even remotely consider putting that kind of load anywhere on your second floor. I thought before we might be talking about a small room with a basement below.
Fixing up a small room in the basement or considering first floor rooms with a short span that could be reinforced would be much easier and cheaper.
With that kind of weight put on that span, I would expect to see damage to the plaster below, possibly walls and ceiling. As well as, Possible damage to major structural framing. I don't think you would be pushing anywhere close to the point it would collapse, but it's sure not an impossibility.

I just have this horrible worst case scenario in my mind of Tom Hanks in "The Money Pit", only worse. ( )

Jamie
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Old 12-27-2008, 10:51 PM   #8
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birth-pool weight concern


I get 250 gallons for 2000#. What is the footprint of the pool?
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Old 12-27-2008, 11:19 PM   #9
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Name:  product-id-49.jpg
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http://www.yourwaterbirth.com/la-bas...pool-p-49.html

If so, then your weight calculations are off by quite a bit. That pool is a 100 gallon pool, which is about 800 pounds over about a 5'x4' area (20 sqft). That's 40# per sqft of weight, plus the weight of the person or persons in that area. Still alot of weight, but may not be as unrealistic as a 2000 pool.

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Old 12-28-2008, 06:45 AM   #10
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either bob vila's guys or the crowd over at hgtv put you up to this, right ? ? ? good 1,,, even so, happy new year to all ! ! !
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Old 12-28-2008, 11:19 PM   #11
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birth-pool weight concern


there is a bearing wall underneath, about two feet away from a wall in our room so the pool would be partially on top off that which would help considerably.
I will find out tomorrow exactly what the foot print of the pool is.
Thanks for the input so far.
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Old 12-29-2008, 10:43 PM   #12
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birth-pool weight concern


whatever, i'll figure it out.
if you figure 2000 lbs. is like 11 or 12 guys.
**** my house could take that.
we will most likely opt to put it over a wall to be safe anyways,
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Old 12-29-2008, 10:45 PM   #13
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Originally Posted by yesitsconcrete View Post
either bob vila's guys or the crowd over at hgtv put you up to this, right ? ? ? good 1,,, even so, happy new year to all ! ! !
nope sorry, doin' a my wife and I are doing a homebirth.
cheers,

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