I'm starting to layout a set of stair for my garage/mini barn. 9' ceilings, 15'2" run...I can't see how to do it without winders, I had figured on 3 at the bottom, 30 degrees each turn. I've read they are more comfortable if the winders follow the same tread depth at the walk line as the common treads, but with a 6" inside width and 3 winders, that seems impossible to me. Then I'm reading an interpretation of the code that says all the commons have to be the same within 3/8", all the winders have to be the same as each other at the walk line, but the commons and winders don't have to have the same run. Scratching head to say the least. Is this something that varies locally? Should I be calling the building inspector for a local reading, or is there some standard on this? I've talked to some local stair builders.........boy do their answers vary. Some haven't heard of the 7 3/4" max rise yet. HELP!