Thanks for the suggestions. In lieu of asphalt board, what should I use for that gap? Should I just pour the concrete right up to it? Also, will it be possible to form an angled area of concrete was well as a flat 'lip' at the top of the old slab?
I need to replace my cracked garage threshold that has separated from the garage slab and the walls. It is a single car garage with a total area that needs replacing of about 17 inches in width after I will trim the slab to a flat edge with a saw that I will rent.
I have perused this forum and...