I'm building a set of stairs on my deck and CANNOT seem to find a straight answer on this. I'm using closed outside stringers spaced 36" and will use metal tread brackets to attach two 2x6 treads for each stair. Some info I've found says I DO need a third stringer in the middle for support...others have suggested I DO NOT need a third stringer as long as my span isnt longer than 36". Any suggestions on this? Will my 2x6s hold up ok or should I do the third stringer regardless to make my stairs stronger?
- posted
15 years ago