I've been working on two doll houses for my daughters and their American Dolls. These are 24" deep, 48" wide and 73" tall. I used some cabinet grade 3/4" plywood and left over walnut for the roof and the trim work on the windows and doors. I drew some lines on the floor pieces before staining them to make it look like hardwood. I used pocket screws to join it all together. I found the plans on Pinterest. All that's left is to move them to the basement!