On Dec 8, 7:48*pm, "mark" wrote:
Greetings All,
*I am wondering if there is a short set of rules for residential stair tread
heights. In a nutshell,
we had a second floor added a couple of years back. The stairs are just
site-built plain old utility grade 2x treads that are held by nails and
construction adhesive. The flooring at both the bottom of said stairs and
top are now finished, so I would like to pretty up the stairway. I know
there are certain dimensions to adhere to pertaining to tread height, depth
and the max variation from tread to tread. *Is this something covered by a
national code, or does it vary by municipality? *An architect (student) told
me allowable tread height is from 7" to 7 1/2" and no more than 3/32"
variation in tread height over the run of stairs.
*I plan on having to remove the 2x treads and hope to use the existing
stringers. I have a thickness planer, so I can pretty much make any
thickness product necessary to conform to code. Thanks to all who are able
to help, Mark

The usual rule of thumb is 7-11, meaning 7" riser with 11" tread, but
you can tweak the numbers a little if you had to. It definately should
not be more than 8" riser.What is the riser height now? You could
probably just rip out the 2X and put in premade oak treads.