Wayne Whitney Wrote:
On 2005-03-02, manhattan42 wrote:

[IRC 2003] Added considerations are that the nosing must have a
radius of curvature no greater than 9/16 of an inch

If this requirement applies to the nosing as a
whole, then the nosing radius can't be more than 9/16", so the
diameter can't be more than 2 * 9/16" = 1 1/8"


Correct.
But this is not odd because most manufactured treads are 1 1/8" thick
or less.


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manhattan42
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