Welcome to BYC!!
I read your Reddit post and it sounds like you have an semi-urgent need because the current pre-fab coop is failing after just a year, is that right?
Let’s start by getting some basic Q&A done so you don’t have to repeat yourself for others:
Generally where are you and what’s your climate like? What predators are of concern?
Also need to know how many chickens you have/want and if they are bantam, standard or extra lrg breeds.
First, I have to agree with
@SourRoses, the coop you referenced is of poor quality material for the money. It’s also small, housing maybe 3 standard birds comfortably.
In your Reddit thread you gained some excellent advice on how to shore up the roof so it doesn’t rot in a year like your present coop: shingles, metal, etc. That will obviously cost more upfront but it solves problem immediately (after assembly). Adding tar paper and shingles or metal on top of the existing roof will extend the life of the coop by a couple of years barring no other structural issues down the road. Ventilation is poor so consider adding more.
Regarding the coop fitting the pen, well that’s hard to say without knowing measurements of the connection opening. Clearly some fitting and minor construction will be needed to make it fit and predator proof. It may be cost effective to simply build a coop to fit the pen if you have the skills, tools and time or know someone who can help.
