The Tray Base is the bottom part of the base which is filled with either 250 pounds of sand or pea gravel. You can purchase the sand or pea gravel Home Depot or Lowes. The tray base holds roughly 5.5 bags.

* In the event you would like to move your umbrella or store it for the winter, pea gravel is much easier to remove.  Also, if you live in an area that sees freezing temperatures, dont add water to the sand or stones, there is a chance the water inside can freeze and crack the base. NOTE: you cannot use water only it’s not enough weight.