Bought this on ebay for 160. Figured I would spend at least that much building one myself. No real directions to assemble but if you are handy shouldn't be a problem. It looks like it could hold up to 5.
Constant open ventilation per chicken is 1-sq ft @ chicken. Do you have that much open ventilation inside the coop where the chickens will roost for the night? Also, I would put the coop inside a roofed dog kennel or other type cage for added security depending on what predators are in your region. We live in the suburbs and city raccoons and possums are our concern. Manufacturers over-estimate how many chickens will fit their coop models. Counting nests tells me how many chickens fit minimally in a coop, i.e., 2 nests 2 chickens, 3 nests 3 chickens, 4 nests 4 chickens. It's not that each chicken needs a nest, it's just that's the way I figured how many actual chickens will safely inhabit a smaller coop. Just my personal formula plus need to take into account how much ventilation (not draft) is available per chicken.
3 nest boxes in this 4x6 coop shouldn't house more than 3 hens plus we needed to have a lot more foraging area and ultimately let the hens free-range the backyard; otherwise they went stir-crazy in this small pen. Air circulation was great but space was inadequate.
This Barn Coop's manufacturer said 15 to 16 chickens would fit into this 4x4x6 coop but let me say the ventilation was inadequate for that many chickens with only 2 vents and windows that didn't open at all.
Ventilation was inadequate so we ordered a kennel wire floor for added circulation. Chickens poop a lot inside a coop and suffer respiratory issues without proper air circulation (not drafts).
This Barn Coop has 4 nest slots so IMO only 4 hens adequately fit this 4x4 floor space - not because each chicken needs a nest but the number of nest slots tells me the number of chickens that will minimally be safe in here. The coop is 6 ft tall and comes with 5 total roosting perches but there is no way we would crowd the manufacturer's recommended 15 to 16 chickens in this small space. We swapped out the solid floor tray for the wire floor tray above.