I want to install interior stair treads and risers on an enclosed wall stairway. This is new construction with 3/4' CDX plywood screwed down on the stringers. I plan to use 1" solid oak treads and 5/8" plywood oak for the risers. I am not sure what is the best way to secure them. Do I finish nail the treads and risers, glue only or nail and glue? What size nail and what type of glue would be best to use? Do I finish nail by hand with galvanized nails or woud a 15 ga. finish nail gun be OK? I am unable to screw the treads and risers from underneath due to the stairwell bottom being drywalled.
Thanks in advance for your suggestions,