Playground Sand Cost: Bags vs. Bulk - Best Prices on Bulk ...
Keep in mind that 9″ of sand will protect children against falls up to 4′ in height, so if your equipment is 6′, you'll need your sand to be 13-14″ deep, 8′ equipment will require a depth of 18″, and so on. Also note that the sand will compress 25% over time, so you'll need to keep an eye on depth levels and fill .