How deep should a sandbox be?

How deep should a sandbox be?

Go 6 inches deep. Include the dirt under the wood you laid out. Add a 1-inch deep and 4-inch wide layer of sand around the perimeter.

Does a sandbox need drainage?

Drainage. After a summer shower, you'll want to make sure your sandbox can drain naturally, so build it at a higher elevation if possible, and definitely not in a low spot in your yard. Try to build it so that there will be a slight slope. This will help with drainage.