Be careful in the store...
The bags I bought in the store said 0.5 cubic feet, but only weighed about 25 pounds. Trust me, I could NEVER have carried one in each arm if they weighed 50 pounds!
Nowhere on the bag was there any mention of the weight & even the guy working the yard didn't know the conversion, but the Customer Service googled it in the store. <http://www.aqua-calc.com/calculate/volume-to-weight>.
A half a cubic foot of sand should weigh about 50 pounds dry, and a little more if damp, like these bags were. It is a very fine sand, very white, and is uniform throughout — molds well when wet -- great play sand.
Interestingly, the bags in the store only had cubic feet on them and the bags online at homedepot.com only had weight in pounds, with no mention of cubic feet... left hand, right hand, go figure...?
In the attached photo each of the black bags (umbrella base weights) holds "up to 50 pounds of sand" -- what is shown is 3 1/3 of the bags I purchased. After a week of settling and rain, there is probably room to squeeze in another 1/3 of a bag -- but DEFINITELY NOT 200 pounds!
We looked everywhere for fine white sand that had a smooth texture for our daughter's sandbox. We purchased 25 bags of another sand a quickly realized once loaded in the truck that it would only irritate our daughter's eczema. We found this out of luck in the next county over. Brought it home and filled her sandbox up with it and it is perfect! there are no rocks, its white, is fine and not course, it is so soft, and it doesn't irritate her eczema! We have a very happy 2 year old. Grateful I found this today!!