Q.Raised Garden Box
I have a table frame that is 72 inches wide x 36 inches deep x 29. 5 inches high. I have built a cedar garden box that is 72 inches wide x 36 inches deep. I want to sit the box on top of the table frame but do not know what to use for the bottom of the garden box to keep the soil in it. Would I use a sheet of heavy plastic, or maybe some chicken wire?

Certified GKH Gardening Expert
Here is an article or two that you may find helpful: https://www.gardeningknowhow.com/edible/vegetables/vgen/raised-vegetable-gardens.htm
https://www.gardeningknowhow.com/special/urban/raised-beds-for-urban-settings-no-digging-required.htm