When you’re keeping a flock of 20 chickens, you’re well beyond the backyard hobby stage—you need a coop that’s essentially a small poultry barn. At this scale, overcrowding isn’t just a comfort issue; it can quickly cause stress, pecking, and disease. A good coop for 20 hens should offer ample floor space, multiple nesting boxes, generous roosting space, and a secure run. Durability and ease of cleaning are also vital when managing a larger flock.
For 20 hens, plan for at least 60–80 square feet of indoor space and 200 square feet of run space. That’s a minimum guideline—more is better. You’ll also need at least 6–7 nesting boxes, strong predator-proofing, and plenty of ventilation to keep air fresh and dry. In this guide, you’ll find our top recommendations, a buyer’s guide, detailed reviews, a comparison table, and FAQs so you can choose the perfect coop for your flock.
Quick Picks
- Best Overall: OverEZ XL Chicken Coop – Built to handle up to 20 hens with ease.
- Best Budget (still $300+): Tangkula Large Walk-In Coop – Affordable, roomy, and functional.
- Best Premium: Roost & Root Round-Top Walk-In Coop – Premium, attractive, and extremely durable.
Buyer’s Guide: How to Choose a Coop for 20 Chickens
- Space Requirements: At least 3–4 sq ft per bird indoors and 10 sq ft per bird in the run.
- Predator Protection: Use hardware cloth, reinforced latches, and sturdy framing to keep foxes, raccoons, and hawks out.
- Ventilation: Multiple vents, windows, or ridge vents are essential for fresh air circulation.
- Ease of Cleaning: Walk-in designs, removable trays, and hose-friendly interiors save time.
- Weather Resistance: Choose rot-resistant treated wood or high-quality plastic/composite materials.
- Nesting & Roosting: Provide at least 7 nesting boxes and long roost bars so every hen can perch comfortably.
Detailed Product Reviews
1. OverEZ XL Chicken Coop
Who it’s for: Keepers needing a purpose-built, heavy-duty coop for large flocks.
- Holds 15–20 hens
- LP SmartSide siding and trim
- Eight nesting boxes with outside access
- Ventilated windows with predator mesh
Pros: Extremely sturdy, weatherproof, long-lasting
Cons: Heavy, requires two people to assemble
Final Verdict: A professional-grade coop for serious chicken keepers.
2. Tangkula Large Walk-In Coop
Who it’s for: Budget-conscious owners who still need space for 20 hens.
- Holds up to 20 hens (with attached run)
- Weather-treated wood frame
- Walk-in height for easy access
- Multiple nesting areas
Pros: Affordable, spacious
Cons: Requires seasonal maintenance
Final Verdict: A good value choice if you’re willing to weatherproof annually.
3. Roost & Root Round-Top Walk-In Coop
Who it’s for: Keepers who want a premium, beautifully designed walk-in coop.
- Holds up to 20 hens
- Composite and cedar construction
- Walk-in design with large run
- Excellent ventilation
Pros: Stunning design, weatherproof, predator-proof
Cons: Premium price
Final Verdict: Ideal for those who want functionality and aesthetics in one.
4. SnapLock Formex Walk-In Coop
Who it’s for: Keepers wanting low-maintenance plastic construction.
- Holds 15–20 hens
- UV-resistant, rot-proof plastic
- Tool-free assembly
- Adjustable ventilation
Pros: Low maintenance, durable, easy to clean
Cons: Less insulation in extreme cold
Final Verdict: Great for warmer climates and minimal upkeep.
5. Producer’s Pride Defender Coop
Who it’s for: Large-flock owners who want a functional walk-in coop at a fair price.
- Holds up to 20 hens
- Raised wood frame with attached run
- Multiple roosting bars and nesting boxes
- Walk-in entry for easy cleaning
Pros: Spacious, functional
Cons: May need reinforcement for predators
Final Verdict: A solid large-coop choice for most backyards.
Comparison Table
| Name | Key Features | Capacity | Price Link |
|---|---|---|---|
| OverEZ XL Coop | LP SmartSide, 8 nesting boxes | 15–20 hens | View |
| Tangkula Large Walk-In Coop | Wood, walk-in design | Up to 20 hens | View |
| Roost & Root Round-Top Coop | Composite/cedar, premium build | Up to 20 hens | View |
| SnapLock Formex Walk-In | UV plastic, adjustable ventilation | 15–20 hens | View |
| Producer’s Pride Defender | Wood, attached run | Up to 20 hens | View |
FAQ
What size coop do I need for 20 hens?
At least 60–80 square feet indoors and 200 square feet in the run.
How many nesting boxes for 20 hens?
At least 6–7 nesting boxes for comfort and efficiency.
Can I keep 20 hens in a mobile coop?
It’s possible but requires a very large and sturdy mobile setup, moved daily.
Conclusion
The OverEZ XL Chicken Coop is the best overall choice for durability and capacity, the Tangkula Large Walk-In Coop offers great value for the size, and the Roost & Root Round-Top Walk-In Coop combines beauty and function for serious poultry keepers. Whichever you choose, your 20 hens will have the space, security, and comfort they need to thrive.
Bonus for Coop Owners
Want step-by-step guidance on building and maintaining a chicken coop? Get Backyard Eggs now and start your clean, quiet coop the right way. You’ll learn noise and smell control, beginner-friendly care routines, and more.