How much does my waterbed weigh?

Weird Harold

Opinionated Old Fart
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Mar 1, 2000
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Fair warning for starters: This is another quest for information about educational levels.

I have a King size waterbed. It is 6 ft x 7 ft x 10 in deep, and is framed with 2x10 inch Douglas fir and has a book case headboard (empty) and six under-bed drawers (empty).

Approximately how much does it weigh?

How did you figure it out.

More to come later.
 
Harold is this a trick question? Gimme some dimensions for the drawers, the headboard.

The water weighs 2,175.96 lbs.
 
Maybe but just having a waterbed doesn't mean it be full of de water :p
 
Problem Child said:
Harold is this a trick question? Gimme some dimensions for the drawers, the headboard.

The water weighs 2,175.96 lbs.




Nope, Not a trick question,

The drawers weigh less than two pounds each including the hardware and framing.

The headboard is is 6 ft long, 10 inches high, and ten inches deep, made of 2x10 in Douglas Fir as is the rest of the frame.

How did you arrive at 2,175.96 lbs for the water?
 
I was a little off on the weight of the water the first time. I re-did it and got:

the frame is 6' x 7' x .83' (10") = 34.86 cubic feet.

34.86 x 64.42 lbs/cubic ft. of water = 2,245.68 lbs.
 
Jesus Harold, I need a drawing. If you tell me exactly how many feet of fir you've got I'll tell you how much it weighs.

Where is all this leading?
 
Problem Child said:

Jesus Harold, I need a drawing. If you tell me exactly how many feet of fir you've got I'll tell you how much it weighs.

Where is all this leading?


It's leading to a question about practical math skills, metric vs American measures and reading all of the question.

I'll give you a hint: I asked for the approximate weight of a a King size water bed. (filled)

The weight of the wood is negligble compared to the weight of the water. It's somewhere between fifty and 150 pounds, or less than 2% of the total.

I'm going to let it ride for now and see if anyone disagrees with your answer or has another method of figuring it.

I do wonder where you found, or how you knew, the conversion factor of: "64.42 lbs/cubic ft. of water"?
 
What's it got to do with metric vs. english units?

The weight of water is something I use at work sometimes, but I looked it up to be sure.
 
Problem Child said:
What's it got to do with metric vs. english units?

All in due course. Get a good night's sleep, and all will become clear tomorrow. (probably afternoon.)

Lavender? Why didn't you venture a solution? How about the others who have looked, but not answered? Why not? PC's method isn't the only one, and I haven't bothered to check his figures (either set.)

Tune in tomorrow for a discussion on education.
 
lavender said:
Because as I have aged, my math skills have seriously dissipated. :)


So have mine, mine are so bad it affects my calculator. (sometimes it thinks 9+9=12)

If your insurance agent or Landlord asked you how much your waterbed weighed, how would you figure it out. (If you had a waterbed! -- Just to forestall the "it wouldn't get asked 'cause I don't have a waterbed" evasion. :p)


[Edited by Weird Harold on 05-22-2001 at 03:16 AM]
 
If 6ft X 7ft X 10"
=1.83m X 2.14m x 0.25m =0.979 cubic metres
I think one cubic metre of water = one metric tonne.(1000 kg)
So 979 kg of water + 20 to 70 kg of frame.
Equals approx one metric tonne of bed.
 
Myrrdin (from: Cymru.) said:
If 6ft X 7ft X 10"
=1.83m X 2.14m x 0.25m =0.979 cubic metres
I think one cubic metre of water = one metric tonne.(1000 kg)
So 979 kg of water + 20 to 70 kg of frame.
Equals approx one metric tonne of bed.

I'm not surprised a European is the first to see the easy conversions from volume to mass (weight) in metric.

(Bump one more time and then to bed.)
 
Weird Harold said:

If your insurance agent or Landlord asked you how much your waterbed weighed, how would you figure it out.
Chances are that info would be in the paperwork that came with the bed from the manufacturer. Since I save all of that type of paperwork for all purchases for just these kinds of questions and warranty info, I'd go to my file and find it. No math necessary.
 
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