Washed Sand is the same thing as mason sand and play sand. It is clean from dust and debris, weighs about 2700 lbs. per cubic yard and is tan in color. It is best to use this sand in places where you do not want any moisture retention like under brick walks. This sand is also what is normally used for beaches in our area.
This sand is exceptionally clean, when kids play in it they will have minimal residue left on them. This is due to the type of cleaning process this sand goes through - beware of any other local sources of sand if it is to be used in a sandbox.