Appearance and Locations
There are two types of boxes in Granny, Wooden Boxes and Cardboard Boxes.
The Cardboard Boxes are rectangular and quite flat, and they are made of a light brown cardboard material. These Boxes can be found blocking an entrance to the Secret Area's Top Floor (from the Walk-In Closet), and an entrance to the Hidden Closet. These boxes will always be found in stacks of three.
The Wooden Boxes are more cubic than the Cardboard Boxes, are composed of several narrow wooden planks. These Boxes can be found scattered around the Basement, and two of them can be found stacked on top of each other, blocking the entrance to the Hidden Room (from the Basement).