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piano weight
#1883031 04/20/12 02:18 PM
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Many new homes today are built with 16" on center,and usually
wood I beam..would the floor have to be reinforced for a grand
piano? above a certain weight/length?

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Re: piano weight
Bob Newbie #1883093 04/20/12 03:47 PM
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Standard floor joists should be able to take the weight of a piano without any troubles. Just consider a football party with 3 really big guys on a couch and how it compares to a grand piano :-D

People with large aquariums start to be concerned with non-slab floors at around 125g (about 1250lb with water/gear) and that is over a 2x4ft foot print.

Re: piano weight
Gomer #1883195 04/20/12 06:38 PM
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Originally Posted by Gomer

People with large aquariums start to be concerned with non-slab floors at around 125g (about 1250lb with water/gear) and that is over a 2x4ft foot print.


I couldn't figure out what you were trying to say here since 125g in most parts of the world means 125 grams (about a quarter of a pound) and it took me a while to figure out that you were talking about gallons.

Re: piano weight
Bob Newbie #1883241 04/20/12 07:38 PM
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Originally Posted by Bob Newbie
Many new homes today are built with 16" on center,and usually wood I beam..would the floor have to be reinforced for a grand piano? above a certain weight/length?


Fortunately the answer is decidedly NO.

Would you be worried if 3 big guys were standing within a few feet of each other on your living room floor? That's all we're we're talking about here. My 5'8" piano weighs less than 650 lbs (295 kg).

Re: piano weight
Sparky McBiff #1883270 04/20/12 09:00 PM
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Originally Posted by Sparky McBiff
Originally Posted by Gomer

People with large aquariums start to be concerned with non-slab floors at around 125g (about 1250lb with water/gear) and that is over a 2x4ft foot print.


I couldn't figure out what you were trying to say here since 125g in most parts of the world means 125 grams (about a quarter of a pound) and it took me a while to figure out that you were talking about gallons.


Sorry about that. The US units are kinda lame compared to metric.

Re: piano weight
Bob Newbie #1883285 04/20/12 09:27 PM
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If you didn't have a scale like frontierswomen of old then the US system makes sense.

Re: piano weight
Bob Newbie #1883299 04/20/12 10:11 PM
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Greetings,
Grand pianos, particularly Steinways, weigh approx. 110 lbs per foot. Others vary by 10 % or so. I have never seen a floor sag because of a piano, and in fact, there was an old house in New York I remember seeing that had pianos stacked on their sides, perhaps, 10 or 12 in a room. Those floors did sag, but they had held that weight for a long time.
Unless you would worry about having a party of 10 or 12 people, the piano is a non-issue. Even put together with those people, I don't think there is anything to worry about. Your local building codes will tell you what the floors are required to support. Check there and compute your risk.
Regards,

Re: piano weight
Ed Foote #1883435 04/21/12 04:27 AM
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Originally Posted by Ed Foote
Your local building codes will tell you what the floors are required to support.


Live load code here in LA is 40 pounds per square foot for residential construction. I doubt that it's significantly lower anywhere. But that applies to the whole room, not just the footprint of the piano. So, you could fill your house with concert grands and still be well under the design limit.

Bottom line, there's absolutely nothing to worry about unless the building is in such bad shape that you have plenty to worry about even without any pianos. ;-)


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Re: piano weight
Gomer #1883517 04/21/12 08:43 AM
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Originally Posted by Gomer
Originally Posted by Sparky McBiff
Originally Posted by Gomer

People with large aquariums start to be concerned with non-slab floors at around 125g (about 1250lb with water/gear) and that is over a 2x4ft foot print.


I couldn't figure out what you were trying to say here since 125g in most parts of the world means 125 grams (about a quarter of a pound) and it took me a while to figure out that you were talking about gallons.


Sorry about that. The US units are kinda lame compared to metric.


Certainly no need to apologize.

I just thought I'd let you know that living with the SI system (metric system) when seeing "g" you automatically and unconsciously think grams and I just initially thought you left out a "k" in front of it (eg. kg) but the math didn't figure right.
So I kept doing calculations to figure out how many kilograms you meant to say and it took several minutes to realize that it was actually a volume measurement.
(I had to clue into the aquarium reference).

It's just me being slow really.


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