I am looking to put in a deck roughly 26'x14'. In this area, I currenetly have a staircase to a small landing outside kitchen door on 2nd floor. I have to replace the stairs/landing due to age of wood. Want to put in lower deck and integrate the stairs/upper landing. Looked for photos or description on web site, didn't see any. Do you have any thoughts? Upper landing/stairs were attached to house structure, thinking i only need to address tying in uprights to lower level frame.