How to Build the Best Chicken Coop - How to Design the Best Chicken Coop for Your Hens

Building a chicken coop for your hens isn’t just about putting up walls and a roof, it’s about creating a space that works efficiently every single day while keeping your birds healthy, calm, and productive. We wanted to build a chicken coop for our flock of 50 hens, and so went through this thought process in detail, using our 20 years of hen keeping experience to boot, but the same rules apply regardless of the size of your flock, and with the right approach, you too can build something that is both practical and well-suited to the natural behaviour of your flock.

Getting the Space Right

Everything starts with space. Too little, and problems appear quickly, stress, pecking, poor laying. Ultimately this will lead to unhappy, unproductive hens in poor health.

For 50 hens, follow these welfare-based guidelines:

        •       Indoor coop space: 0.18–0.2 m² per hen → Aim for 9–10 m² minimum

        •       Outdoor run: 1–2 m² per hen → Ideally 50–100 m²

If you can go bigger, do it. Extra space makes flock management noticeably easier.

Building the Structure

Think of the coop as a simple, strong shell that protects against weather while staying easy to maintain.

Frame

Use treated timber to build a solid frame. Raising the coop 30–50 cm off the ground helps prevent damp, improves airflow, and discourages pests, and provides a great shelter for the hens. Some invest in a concrete pad for their hen house, which can be a great idea, especially for protecting from predators, but keep on top of the rodents, rats love to burrow under concrete pads, and once there, are extremely difficult to remove.

Walls

        •       Exterior: timber cladding for weather resistance

        •       Interior: line with stock board

Stock board is particularly useful inside a coop, it creates a smooth, wipeable surface that stands up well to moisture and makes cleaning much faster. red mite also dislike the lack of crevices in which to hide, and so it can help to prevent outbreaks. Depending upon where you live, adding a second layer to aid insulation is a good idea. It can help regulate the temperature of the coop, leaving it cool in the summer and warm in the winter, and reduces condensation which can be triggering for respiratory illnesses.

Ventilation: Keep Air Moving

Fresh air is essential, even in winter, it helps to reduce the chance of respiratory illnesses which hens can be prone to.

        •       Install high-level vents on opposite sides. ideally high up, above the hens heads. Chickens can manage very well in cold temperatures, but roosting in a constant draft will create a high stress environment for them. You’re aiming for steady airflow, not cold gusts.

        •       Cover with mesh to keep predators out. Rats particularly will climb up the side of a wooden coop with ease, and if they are able to enter the coop, could injure or even kill the birds.

Perches: A Key Part of Hen Behaviour

Chickens naturally roost at night, so perch design matters. consider the following when designing yours:

        •       There should be at least 15–20 cm of perch length per hen. For 50 hens this would be → 7.5–10 metres total perch length at a minimum. Again, a more space, and they will be happier.

        •       Height: Ideally 40–60 cm above the floor - depending upon the breed and age of your hens.

        •       Width: 4–5 cm with rounded edges. Wood is often the best choice, as it prevents foot related concerns such as bumblefoot.

        •       Spacing: 30–40 cm between perches, and not directly under another perch, hens poop a lot at night - need I say more!

Always keep your perches slightly higher than your nest boxes, this will help encourage your hens to choose to roost on their perches, and not in their nest boxes or laying areas.

Choosing the Best Nest Boxes

When it comes to nest boxes, the design can make a big difference to cleanliness and efficiency. A system like an Eggtopia nest box is worth considering because it:

        •       Uses a rollaway design to keep eggs clean and unpecked.

        •       Reduces breakage from beaks or from being trampled on.

        •       Helps discourage hens from roosting or brooding in the boxes,

•       Offers a communal design which helps to prevent 'hogging' of boxes.

•       Is available in three sizes and can be fitted to almost any coop design.

•       Is made from sturdy galvanised steel in the UK and so will last years with zero maintenance.

        •       Makes collection faster, easier and more consistent.

No matter the size of your flock, small improvements like this can save a significant amount of time and effort.

Placement Tips

        •       Raise boxes 30–50 cm off the ground - this has been found to be the sweet spot most hens prefer.

        •       Position in a naturally darker part of the coop - hens are always keen to lay in a cosy dark spot.

        •       Allow easy access for egg collection if possible - the Eggtopia is reversible, and so eggs can be collected from either inside or outside of the coop depending upon your set up, making egg collection much simpler and less interuption for your hens.

Flooring and Bedding

A simple, durable floor works best.

        •       Solid wooden or board base. We use Stokboard for a durable, easy to clean surface.

        •       Cover with bedding such as wood shavings, straw or hemp. This keeps things cosy for the hens, and provides an absorbant layer to collect all the waste.

A deep litter system can be used to reduce cleaning frequency if managed correctly, although this does still need some maintenance and can be expensive initally.

Access and Practical Details

        •       The hen entrance for the chickens should be around 30 x 40 cm, and we always use an automatic door opener, this is a godsend if you like a lay in of a morning, or might be out during the evening when its time to close up. Unfortunately Mr Fox is very oportunistic, and won't hesitate if he happens upon an open coop door. Our favourite is the Chickenguard.

•       Don't forget to add a ramp with grip strips to your house if it is raised.

        •       You will need an access door for cleaning and accessing the coop. The bigger the better unless you want to crouch, and ensure the floor will take your weight if the coop is too large to be cleaned whilst standing outside. Also, if you can avoid a lip at the door, your future self will thank you, and being able to sweep dirty bedding straight out through the door is a great feature.

 These small details make day-to-day use much easier.

Predator Protection

A well-built coop also needs to be secure.

        •       Use welded mesh, not chicken wire - rats and foxes have been known to chew through thinner guages of chicken wire.

        •       Ensure you have a mesh skirt 20–30 cm wide around the outside of your run area, and ideally bury it underground if you can. This will prevent predators such as foxes digging under and into your run.

        •       Seal all gaps carefully.

Predator-proofing is not optional, it’s essential. Check upon the fencing regularly for any damage or sign of wear.

Final Thoughts

A good chicken coop doesn’t need to be complicated, but it does need to be well thought out. Focus on space, airflow, and ease of cleaning, and you’ll end up with a setup that works reliably day after day, that will be a joy for you to maintain, and a happy home for your feathered friends.

Build it properly once, and it will serve both you and your flock for years.