I am working on building a floating deck and am having trouble deciding on how to support my stairs. I was planning on having a single step, and was wondering what the options were as to what it could sit on. Ideally I would want it to look like the deck stair is sitting on grass.
From my research the following may work:
Concrete base (strong, but a lot of work to mold/pour)
- pavers (layers: dirt, landscape fabric, paver base, paver sand, pavers)
- gravel/paver base ? (layers: dirt, landscape fabric, gravel)
- dirt ? (layers: dirt, landscape fabric) (wood is pressure treated ground contact rated, but heard it will rot eventually), seen a lot of videos where people do this, but it doesn't feel right.
- other? dig posts?
Here are some pictures of the current state of my deck, and the stair design.
Note that I live in southern California so I do not have to worry about frost.