We used pressure treated landscape timbers 6"x6"x8' with 1in rebar to construct these terraced pathways, stairs, seating areas, vegetable garden, orchard and at the very bottom a Tai Chi Pad. Clients had no idea we were also addressing this "unusable" hillside as part of their whole property design and were quite excited when we presented our ideas. This is now a favorite part of their new "Outdoor Lifestyle". Hoping you'll get lots of enjoyment from your completed project. Best, Greg
Gregory Davis & Associates