Will Barbie or Calico Critters fit inside these dollhouses?

It varies. Verified-purchase reviewers note that 12-inch dolls like Barbie fit comfortably in the larger KidKraft and Delta Children houses but are tight in compact wooden houses sized for 4-6 inch figures. Smaller figures like Calico Critters, Lottie, and wooden peg dolls fit in essentially every model in this list.