Hi .
From B&Q buy a plastic shed. they sell it about 300 Euro. "buy a strong one". then buy tree stakes "2 inches wide" , paint them and use them as perches using a drill, screws and round washers to fix them across the shed. they work as perches and enforcement for the shed. plastic lasts much longer, you don't need to paint it. less likely to have red mites problem, much easier to clean and if you decide to give up chicken keeping you can use the plastic shed as a shed.
And when you get morehens disease you will find it as a blessing because it can hold many more hens than any coop.
"don't use the plastic base. keep the floor just soil. a bag of compost will be great. you can use the "enriched compost" to grow your favourite plants later.
You can use the plastic base for something else.
Around the plastic shed build a run of your choice depending on your budget, garden and predator problems in your area.
Good luck.
OPPs
B&Q are already selling timber bars with round edges for about 4.5 Euro they are good as perches
