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.
On curved stairs, the minimum depth of the treads at their narrow end is 6 inches, and the minimum depth at the âwalklineâ is 10 inches. The walkline is measured 12 inches in from the narrowest part of the treads and follows an arc thatâs concentric to the one at the inner stair edge.