Glue a door into the side wall of the covered stair
Glue another door into the end wall of the covered stair.
Glue the two Masonite covered stair base parts together. Set aside and allow to dry
Glue the rear wall to the base. The glue front wall to the base.
Make sure that both walls are alighned with the bottom edge of the base pieces and with the ends.
Glue a door into the side wall of the covered stair.
Touch up the walls with a sanding stick.
Glue the sloped end piece in place.
Check your alignment carefully.
Glue the small flooring piece in place.
Next the tall end piece.
Touch up the paint.
Glue the trim in place.
Applying the covered stair roofing is the most difficult part of the kit construction because the center roof has to torque.
I find that CA and Zipkicker ( a CA catalyst) works best here.
Apply CA to the rear edge of the covered stair.
Carefully align the middle roof and glue it in place.
Glue the front edge of the middle roof down using CA and zipkicker.
You could also use yellow glue and rubberband clamps if you are more patient than I.
Once the middle roof is in place, glue the upper roof against it.
Hold the roof in place. Remember that it will be covered with "tar-paper" so a little gap is okay but do your best to get both roof parts aligned.
Now glue the bottom roof on. Align the outside edges of this roof. The edge closest to the building will wrap around the corner. it is supposed to stick out.