Building a shed on a slope, and looking to add a retaining wall around it to block the space underneath, but offset the wall 2ft or so to add dirt and plants.
If possible, I want to be able to put something around the shed base to put the dirt up against on the back side of retaining wall without having to use concrete blocks. Keeping the space under the shed empty, and only filling dirt in between retaining wall and barrier. I am thinking of sealing the columns, and attaching wood wrapped in tyvek or something to protect it from rot.
The 6x6 posts, joists, and rim joists are all pressure treated wood.
What are some options to hold the dirt between the perimeter of the shed and retaining wall? Also do I have to leave a gap for airflow? Or can i seal it up to rim joist.
See picture for example.