I have not heard of that being an issue. Thank you for your inquiry!
It’s marked on the front of the bag. For 100sf at 2” deep you would need 33 bags. So multiply 5x33. That would be 165 bags for 500sf area. But remember when calculating sf to cf it’s only formulated for a perfectly square or rectangle area that is exactly 2” deep. Otherwise you need to calculate by cubic yard.
You’ll need 16.6 cu yds which would translate to roughly 900 bags
Last year (April, 2019) these were a really nice mixture of amber, white and some light pink or red. This year (March, 2020) the photo looks like the color has changes to largely amber, and the price has gone up by like $1.50 per bag. Unfortunately Home depot does a poor job of showing proper color in the photos and maintaining consistency from year to year. I want to add to what I have and that looks like a real problem.
I would estimate 20 bags based on the 1 inch depth based on the 8 inches wide x 40 feet long.
hope this helps
Yes, however your pots will be heavy. You may want to use styrofoam or lava rock. They are lighter than river rock and won’t degrade.
you will need approximately 25 bags for the 2" depth in an area 8' x 10' "