AA. Box cover placed on side walls. Square cut out so that a box tower or chimney may be inserted through its opening.
GABLE ROOF. TRIANGULAR SUPPORTS TO HOLD IT
Diagram Three. Triangular cardboard pieces are cut and pasted to the upper part of a box to hold a roof made from two interlapped box covers.
B. Gable roof made from two box covers.
BB. Triangular cardboard pieces cut to fit the ends of a box and hold a gable roof.