the foam board out.
On the castle board measure in 1-1\2” in on ea long side. Draw a line and then score this line being careful to only cut through one side and foam core. This will form the sidewalls of the castle later. With needle and yarn sew the two-castle facades tog sandwiching the foam board in the center. Do the same with the floor crochet pieces and the cut to size foam board.
Bend the castle’s sides inward. Sew the floor inside these two walls and the front. Sew the bottom of the door to the bottom of the castle. Either leave open or sew snaps to the top of the door and castle to allow it to close.