Distance between stringers

[Shaela21]

I am looking at putting in a small staircase from my family room up to a doorway that leads to a hallway. It is exactly 14 inches up from the family room floor to the hallway floor. I want to put in 2 metal stringers on each end of a step. The stringers will be bolted to the wall and to the concrete floor. Problem is most of the metal stringers that I have seen have a vertical piece at the top of them that bolts to the wall, and that is fine as long as I can set them (the stringers) far enough apart to meet the door frame which is 36 inches wide. My concern is the step board will start to sag after a while, or will it? Am I okay with this distance between the stringers and not have the step sag? I am also thinking that I may bolt (or weld) a small "L" bracket in under the step between the stringers for support. What do you think? The board that I am looking at bolting to the stringers is a proper 1 inch thick board with a rounded over edge.

[HayZee518]

proper step "rise" is no less than 7 inches, so you're safe there. why not use three stringers - put one in the middle. a one inch board - oak or maple will sag after time but with a center support you'll get a more stronger support

[WVslottech]

beacuse i think what he is reffering to isn't a stringer. i think he is talking about a stair bracket, fastened to each side of the wall.

[HayZee518]

ok, I can relate to that. but it still will be stronger with a center support.