Sand Coversion

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Sand Coversion

Postby AinSC » Wed Jul 11, 2007 11:39 pm

We are buying a swimming pool. We have to order masonry sand. I was told to order 3.5 tons. When I called for prices they gave me rates based on square yards. How do I figure out how many square yards are in 3.5 ton?

Thanks for the help....I have looked at about 6 different websites and cannot narrow down the answer.


Postby Dirtman » Thu Jul 12, 2007 8:07 am

Sand is usually sold by the ton, sometimes by cubic yard if they don't have a scale. The S&G (sand and gravel) pit you called probably doesn't have scale. However, a S&G pit shouldn't give you a "square yard" quote unless that can give you a depth the square yardage is based on. If they can't do that, buy from someone else.

Sand weighs from 2400 to 3100 pounds per loose cubic yard, dependent (for the most part) on moisture content. Because the sand will be compacted under the weight of the water in the pool, I would use a weight of 2970 pounds per cubic yard as a base, or 1.485 tons per cubic yard.

Be sure you get masonry sand as it has no gravel, which could create a hole in the pool liner.

There is a web site on pools with a sand volume chart you may be interested in here: ... -Chart.htm
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Re: Sand Coversion

Postby Herschel » Thu Apr 12, 2012 8:45 pm

A loose cubic yard of masonary weighs approximately 1.485 tons. 4.5 yards would be multiplied by 1.485 for a total of 6.825 tons. I'd round to 7 tons just to be on the safe side. You can also buy it in hundred pound bags at your local lumber or building materials supplier. 2000lbs X 1.485/100 = 30 bags per cubic yard X 4.5 yds = 135 bags. It would be cost prohibitive to buy it this way, compared to loose sand delivered. Hope this helps.

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