Large Automatic Chicken Coop Door
Large Automatic Chicken Coop Door: 12"×12" Professional Protection
Professional-grade automatic door designed for large breed chickens, ducks, and small turkeys. Steel worm drive security with WiFi control and solar power options.
Perfect for Large Breeds and Growing Flocks
Large Chicken Breeds
Ideal for Brahma, Jersey Giant, Cochin, Orpington, Wyandotte, and other large heritage breeds.
12"×12" opening provides comfortable access
Ducks & Waterfowl
Perfect size for Pekin ducks, Muscovy, and other domestic duck breeds. Handles their wider body structure.
Accommodates 8-15 ducks comfortably
Small Turkey Breeds
Suitable for Midget White, Royal Palm, and Bourbon Red turkey varieties up to 20 pounds.
Not for standard commercial turkeys
Sizing Note: The 12"×12" large door handles 8-20 large breed chickens or 8-15 ducks. For larger turkey breeds (over 20 lbs) or flocks exceeding 20 birds, consider our Extra Large 15"×15" Door.
Large Door Specifications
Door Opening
12" × 12"
30cm × 30cm
Coop Cutout Required
15" W × 28¼" H
Includes controller space
Flock Capacity
8-20 Birds
Large breed chickens or ducks
Temperature Range
-20°F to 185°F
All-weather operation
Common Large Breeds This Door Accommodates
Chickens:
• Brahma
• Jersey Giant
• Cochin
• Orpington
More Chickens:
• Wyandotte
• Sussex
• Barred Rock
• All standard breeds
Ducks:
• Pekin
• Muscovy
• Rouen
• Swedish
Small Turkeys:
• Midget White
• Royal Palm
• Bourbon Red (small)
• Up to 20 lbs
Why Large Breed Owners Choose the 12"×12" Door
Comfortable Access for Large Birds
Jersey Giants, Brahmas, and Cochins need space. The 12"×12" opening prevents feather damage and allows multiple large birds to pass comfortably during peak traffic times.
Room to Grow Your Flock
Started with 6 chickens but planning to expand? The large door accommodates up to 20 birds, saving you from upgrading as your flock grows.
Perfect for Mixed Flocks
Keep chickens and ducks together? The 12"×12" opening works for both species without requiring separate doors or modifications.
Winter Weather Reliability
Larger opening reduces ice buildup concerns. Steel worm drive operates reliably to -20°F, perfect for northern climates with large cold-hardy breeds.
Same Low Power Consumption
Despite the larger size, uses only 1 watt AC power (same as standard door). Solar systems work efficiently with included 15W panel.
Same Predator-Proof Security
Steel worm drive provides mechanical lock security regardless of door size. Raccoons, foxes, and bears cannot force open the larger door.
Not Sure Between Standard and Large?
💡 Pro Tip: When in doubt, size up. The $20 difference is small compared to the hassle of upgrading later if your flock grows or you add larger birds.
Large Breed Owners Love Their Coop Tender Doors
"Perfect for my Jersey Giants. The 12×12 opening gives them plenty of room and they use it confidently. Solar power works great even in Montana winters."
- Tom R., Montana
Large Solar Door
"We have Brahmas and Pekin ducks using the same door. The large size accommodates both species perfectly. WiFi alerts are a game changer when traveling."
- Jennifer M., Vermont
Large WiFi + Solar Bundle
"Started with 8 Orpingtons, now have 18 mixed large breeds. So glad I got the large door - saved me from having to upgrade. Steel drive is bulletproof."
- David K., Oregon
Large Electric Door
Easy Installation & Expert Support
Simple Cutout
Cut 15" wide × 28¼" high opening in your coop wall. Detailed installation guide included with step-by-step photos.
2-4 Hour Install
Most DIY installations complete in 2-4 hours with basic tools. Pre-wired components eliminate complex electrical work.
Expert Support
Email support@cooptender.com for personalized installation help. 1 business day response from our technical team.
Need Installation Help? Download our comprehensive installation manual with photos, diagrams, and troubleshooting guide.
VIEW INSTALLATION MANUALS →Professional-Grade Features Standard on All Large Doors
Steel Worm Drive Security
Solid 5/8" steel Acme threaded drive creates mechanical lock. Predator-proof - not cables that predators can defeat.
Solid Wood Construction
Indoor/outdoor rated 1" dimensional lumber. No plywood. Treated with Rain Guard non-toxic wood sealer.
Freeze Protection
Programmable temperature monitoring. Door stays closed during dangerous cold to protect your flock.
Energy Efficient
Consumes less than 1 watt AC power. Solar systems work efficiently with included 15W panel.
Smart Light Sensors
Automatic dawn/dusk operation. Or program custom schedules for your specific management needs.
3-Year Warranty
Industry-leading warranty coverage on all components. Comprehensive protection reflecting our quality confidence.
Frequently Asked Questions: Large Automatic Doors
What's the difference between standard and large doors?
The large door has a 12"×12" opening (vs. 10"×10" standard), accommodating 8-20 large breed chickens or ducks. Best for Jersey Giants, Brahmas, Cochins, Orpingtons, and similar large breeds. Just $20 more than standard.
Can ducks use the 12×12 automatic door?
Yes! The large door works perfectly for ducks (Pekin, Muscovy, Rouen, Swedish). The 12"×12" opening accommodates their wider body structure and allows comfortable passage for 8-15 ducks.
Will my small turkeys fit through this door?
The large door accommodates small turkey breeds (Midget White, Royal Palm, Bourbon Red) up to about 20 pounds. For standard commercial turkeys or larger heritage breeds, choose our Extra Large 15"×15" door.
How many large breed chickens can use this door?
The large door comfortably handles 8-20 large breed chickens. Factors include your coop size, outdoor run space, and whether birds free range during the day. For flocks exceeding 20 birds, consider the Extra Large door.
Does the larger door use more power than standard?
No - the large door uses the same motor and consumes identical power (1 watt AC, 40mA DC idle). Solar systems work efficiently with the same 15W panel. Door size doesn't affect power consumption.
Can I upgrade from standard to large later?
While possible, upgrading requires a new larger cutout and purchasing a new door. The $20 difference between standard and large at purchase is small compared to upgrade costs. When in doubt, size up.
Is the large door as predator-proof as standard?
Absolutely. All Coop Tender doors use the same solid steel worm drive mechanism regardless of size. The larger door provides identical predator-proof security - raccoons, foxes, coyotes, and bears cannot force it open.
What cutout size do I need for the large door?
Cut a 15" wide × 28¼" high opening in your coop wall. This accommodates the 12"×12" door opening plus the controller unit. Detailed installation instructions with measurements included with every door.
Protect Your Large Breed Flock Today
Join 4,000+ satisfied customers enjoying worry-free chicken keeping with professional-grade large automatic doors. Perfect for Jersey Giants, Brahmas, Cochins, Orpingtons, ducks, and mixed flocks.
✅ Made in USA • 3-Year Warranty • Ships within 5 business days
Use code CTSAVE10NOW for 10% off your first order
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