the stairs are just temporary.
The old deck is 6 feet, the new deck 10 feet.
And there is about a 1 inch difference in height. (oops!) the new deck is 1 inch higher than the old one....
One idea is to go in a triangle, straight across. Another idea is to do a half a hexagon with two sets of stairs, one on each side of the tree. Another idea is to put a railing for half of the new deck, and just a small platform connecting the two.