the full 111/2" board?
please see our link below about the industry standard construction of our stair treads!
is there a formula for how deep a landing at the bottom of a staircase should be? our stair treads are 12 1/2'' deep. there is a wall on one side of the staircase. the other side is open. we plan to make a 48" open doorway on the wall of the staircase at the bottom of the stairs. i am not sure how much room to leave between the end of the stairs and the beginning of the 48" opening on the staircase wall. thank you.
there's not an official formula for the landing 