I have a rough plan for a ground level deck. The deck will not be attached to anything though it will sit under and extend a bit from a free standing pergola.
My plan is to bury most of a cinder block underground as a base. The hole will be filled with a little gravel to level, the block placed on top and then filled with dirt.
On top of the blocks I plan to run AC2 2x4's. The outer most (the picture is off) 2x4's will be two screwed together and then a single 2x4 for the inner joists.
So the joists would look like this:
- Is this a sufficient base for decking?
- How far should the joists be spaced?