Abstract: A blank for constructing a cell unit includes first, second, third, and fourth walls which each have inner and outer planar surfaces and are separated by fold lines. Each of the walls have upper and lower flaps, the upper and lower flaps of the first wall having tabs extending therefrom. The first and fourth walls of the blank are folded along respective fold lines such that the tabs extending from the upper and lower flaps of the first wall are respectively disposed on the upper and lower flaps of the fourth wall. An adhesive is applied to at least the outer planar surface of the first, second, third, and fourth walls. The upper and lower flaps of the first, second, third, and fourth walls are folded to adhesively secure the flaps to the respective outer surfaces of the first, second, third, and fourth walls and the tabs are adhesively secured to the fourth wall.