The size only 6ft x 2.5 ft and all living 20 sq ft with the egg laying and the sleeping loft.
I"m start to keep 5 young 16 weeks old chickens but lather this will turn bigger egg layer hans.
The 20 sq the minimum size to keep 3-5 hen in O.K comfort.
The 3 pice if your adult hen 8-10 pd or 5 pice if 5.5-7.5 pd.
The video show in first 3 min how I prepared recycled found wood and material to be ready to use to build the chicken coop . The second part 3 to 10 min show how I built the hen house (chicken coop) step by step .