What is the Weight of a Hardside or Softside Waterbed?

Waterbed owners’ shoppers, and people who are just wanted to know the answer. Here it is, the response to the question so many of you have contacted us about. You say you want the truth about how heavy a waterbed really is? The information below will answer that question once and for all.

In addition we have supplied you with the formula at the bottom of the page that will help you to figure and properly determine the weight of your own waterbed mattress especially if it is different from the various sizes of waterbeds we have listed below.

What is the formula to determine the weight of a waterbed mattress?
Width x Length x Depth = Total Cubic Inches in a waterbed softside waterbed cavity or hardside wood frame waterbed.

Cubic inches in 1 Cubic Foot = 1728 Cubic Inches
1728 Cubic Inches in 1 Cubic Foot
7.48 Gallons = 1 Cubic Foot
Cubic Feet x Cubic Gallons = Total number of gallons in a waterbed mattress
Gallon of water weight 8.346
Weight of water x Total number of gallons of water in a waterbed = Total Weight

What is the weight of the hardside waterbed bladder /mattress?
You can follow our equation and see how we came to or results.

California King Waterbed Weight Is 1857.24 Pounds
72 x 84 x 8.5 = 51408 Cubic Inches divided by 1728 Cubic Inches= 29.75 Cubic Feet
29.75 x 7.48 cubic gallons of water = 222.53 Gallons x 8.346 pounds per gallon= 1857.24 pounds

California Queen Waterbed Weight is 1547.59 Pounds
60 x 84 x 8.5 = 42840 Cubic Inches divided by 1728 Cubic Inches= 24.79 Cubic Feet
24.79 x 7.48 cubic gallons of water = 185.429 Gallons x 8.346 pounds per gallon= 1547.59 pounds

Super Single Waterbed Weight is 1857.24 Pounds
48 x 84 x 8.5 = 35272 Cubic Inches divided by 1728 Cubic Inches= 20.41 Cubic Feet
20.41 x 7.48 cubic gallons of water = 152.666 Gallons x 8.346 pounds per gallon= 1274.157 pounds

Land and Sky’s New Century Deep Fill Softsides
For those of you who do not want to figure it yourselves, here are a few of our most popular softside waterbeds:

Deep Fill Queen New Century Softside waterbed weight is 855 lbs + the weight of the bed itself

Queen 49 x 69 x 7 = 23667 Toal Cubic Inches divided by 1728 Cubic Inches= 13.6 Cubic Feet
13.696 x 7.48 cubic gallons of water =102.446 Gallons x 8.346 pounds per gallon= 855 pounds

Deep Fill King New Century Softside waterbed weight is 1133.86 lbs in addition to the weight of the bed.

King 65 x 69 x 7 = 31395 Cubic Inches divided by 1728 Cubic Inches= 18.1626 Cubic Feet
18.1626 x 7.48 cubic gallons of water = 135.856 Gallons x 8.346 pounds per gallon= 1133.86 pounds

How heavy is my waterbed?
Here are a few are the most common waterbed sizes examples sold over the last 40 years.

Remember the frame, headboard, and drawer pedestal weights can and do vary greatly, for this reason we have not included their weights in our totals. If you are unsure if your home will hold the weight of a waterbed, we encourage you to seek out a carpenter, engineer, or even you insurance agent to find out the pros and cons of putting a waterbed in your home and whether the weight it is an issue or not.

Here is a link to one of our most popular posts: Will A Waterbed Crash Through My Bedroom Floor?

About 

Doug Belleville and his father Dave own and run STLBeds - a specialty sleep store located in Arnold, MO. The staff at STLBeds is highly educated about sleep, comfort and their special sleep products. STLBeds only carries high quality mattresses and bed-related products. You won't find the brand names here - just call and ask us why!

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