In article , madgardener
wrote:

3/8ths of an inch isn't that much, follow what the greenhouse instructions
say. Lay the weed barrier down, put a good three inch layer of sand over
that, and then set your pavers down on the sand.

If I put down some gravel first, would this be the order of
installation?

1. gravel
2. weed barrier (to keep sand from running into gravel)
3. sand
4. pavers

Thanks.
T-L