311.7.4.3 – Stair tread nosing must extend out ¾” to a maximum of 1 ¼” past front of riser unless the tread is 11” or larger (just like above 3/8” max.width difference is 3/8” based on all treads) height difference of 3/8” based on all risers) 311.7.1 – Stairways shall be a minimum of 36” wide.With this in mind, let’s take a quick look at some of the code basics, the results and tips to get it right the first time. To make it more interesting the plans provided required one to do the math as the answers one would get from a Construction Master® calculator (or just remembering 7/10 or 7/11) would not give them the answers they needed. While some students did pretty good most of them had some issues. This last week as part of the SkillsUSA Alabama State Competition, the Carpentry competitors all got to try their hand at it on the last day. (Heh so you say are a Master Carpenter, huh?) The Back Story: Shoot I have even seen companies hand a candidate a 2×12, a framing square, saw & have them cut a stringer to test their skills. For many production builders they generally don’t have that issue, but simply have a team or “that guy” that does nothing but stairs. In a way it is funny listening to some custom home contractors compare staircases to black holes as they do nothing but suck time & money. In all my years in the building industry, the two biggest items that I see most people stumble with is math and stairs –generally you either you get it or you don’t.
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