Minimum headroom under a stair

In many versions of the ARE exams, the minimum head room under a stair is tested one way or another. In some earlier versions, you are given a stair and you need to layout the stair to reach a certain point on the 2^nd floor. Most of candidates fail because their stair or landing run above a doorway, but there is NOT enough space under the stair to provide the 6’-8” minimum clearance.

If you know what NCARB is looking for, you will pass this portion no matter how they change the question format:

NCARB can ask you to drag and drop to put in the door for a stair well, or ask you to drag and drop a stair component to the best location, etc., but as long as you can provide the 6’-8” minimum clearance for the door way or a corridor, you should be fine.

Gang Chen, Author, AIA, LEED AP BD+C (GreenExamEducation.com)