Installing 'Partitions #3 and #4' is easier because there’s no wall yet to tightly hold this side of the floors together. However, you’ll still need a hammer to gently tap them into place. I found it simpler to install 'Partition #5' first, followed by '#4'. I didn’t prime or wallpaper the partitions beforehand because all sides of the partitions and surrounding walls are accessible after assembly.
To secure the floors, clamp them together and let them dry overnight. I installed trim on the completed walls, using binder clips to hold it in place effectively. I also returned to the kitchen to wallpaper the side of the staircase I hadn’t finished yet. Wallpapering this part of the staircase was a bit tricky at first, but I got the hang of it. You could also paint or stain it to match your decor.
Next, I wallpapered 'Partitions #4 and #5', as well as the hallway and room they form. This wasn’t difficult since all sides were easily accessible.
Once wallpapered, I installed the 'Right Wall', which was straightforward.
After it dried, I added the bay walls, which was also very simple since they consist of three walls with clear tabs and slots. Once everything dried, I could better plan how to proceed with wallpapering the first floor and bathroom (the small blue wallpapered room).
I had to extend the wallpaper into the bay walls for continuity. Since I’m using scrapbook paper and the living room is large, I had to patch pieces together to cover its length. If you need to patch paper, try to do so at a corner or an angle in the room. In my case, there weren’t any suitable corners where I needed to patch, so I placed the seam next to a window where the trim would cover it and make it less noticeable.