I used them at my old house. Worked great for a stand alone deck. Unfortunately, it took a lot of them and I couldn't move around too well underneath. We moved last year and brought our pool with us. I have a 2 tier deck with the pool steps resting on the lower deck. The idea behind the Dek Blok is that it will allow the deck to move with the ground. I didn't want my stairs moving around. They're all sitting in the back yard gathering weeds. I need to get rid of them.