SummerHawk Ranch Urban Slate Barn Chicken Coop Hand built from sustainably harvested, naturally weather and pest-resistant fir Simple enough for one person to assemble in about 45 minutes with an electric screwdriver Expandable with the SummerHawk Ranch Universal Expansion Pen (sold separately) Assembled Exterior: 74.8L x 30.5W x 50.8H (Pen Interior: 12 sq. ft. / Coop Interior: 4 sq. ft. / Nest Box Interior: 2 sq. ft.) If you have any questions, please email info@SummerHawkRanch.com