Max Span for 5/4' Oak Treads?
What is the maximum span that a 5/4" Oak tread can cover without the need for a center stringer? I'm looking at a 30" span, stringer to stinger (inside). There will be risers in place, which provide some additional support.
If I can't do it with 5/4 treads, do you think 2-by will work across 30"?