You can only see that information about someone in your friends list. You can use the message system with someone not in your friend's list, but chances are that your first message will go to their other folder and not to their inbox.
Best Answer: Average width of a staircase is 36 minimum. The tread (step) is no less then 10. The rise is from 7 to 8 depending on the total rise. Take the total rise and divide by 7 1/2, average step, and that gives you you # of steps. Then take total rise and divide by # of steps, this tells you the exact size of your step. Now take size of rise and X by # of steps.
The 22 inch stair width requirement applies to both interior and exterior, fixed industrial stairs (i.e., around machinery, tanks, and other equipment; to and from floors, platforms, or pits) when they are used as described in the application paragraphs 1910.24(a) and (b).