Grandpas Feeders 20 lb Automatic Treadle Chicken Feeder vs SnapLock Formex Large Chicken Coop
Head-to-head spec comparison to help you pick the right coop for your needs.
Grandpas Feeders
$189
SnapLock
$399
Spec-by-Spec Comparison
| Spec | Grandpas Feeders 20 lb Automatic Treadle Chicken Feeder | SnapLock Formex Large Chicken Coop |
|---|---|---|
| Capacity | 6 hens | 4 hens |
| Material | Galvanized steel | Recycled plastic |
| Run Included | No | No |
| Coop Floor Area | 0 sq ft | 16 sq ft |
| Predator Rating | 5 /5 | 5 /5 |
| Auto-Door Ready | No | Yes |
| Weather Rating | 4 /5 | 5 /5 |
| Assembly Time | 0.5 hrs | 0.5 hrs |
| Price | $189 | $399 |
| Rating | 8.8/10 | 8.7/10 |
| Buy on Amazon | Buy on Amazon |
Pros & Cons
Grandpas Feeders 20 lb Automatic Treadle Chicken Feeder
Pros
- Treadle mechanism eliminates feed waste — hens step on the platform to open the lid
- Galvanized steel construction is rat-proof, mouse-proof, and weather-resistant
- 20-pound capacity feeds 6 chickens for up to 10 days without refilling
- Adjustable treadle weight lets you tune it for bantams or heavy breeds
- Lid seals tight in rain — feed stays dry even in uncovered runs
Cons
- Hens need 2-3 days of training to trust the treadle — some skittish birds never adapt
- At $189, it costs more than 5 years of basic hanging feeders
- Sharp edges on early production units required gloves during assembly
- Lid hinge can squeak and spook nervous hens until lubricated
SnapLock Formex Large Chicken Coop
Pros
- Double-walled recycled polyethylene construction is effectively predator-proof with no gaps or seams
- UV-resistant plastic never rots, never needs paint, and hoses clean in minutes
- Tool-free snap assembly takes under 30 minutes — take it apart and move it just as fast
- No wood means zero risk of mites, mold, or rot in humid climates
- Removable litter tray and large access door make deep cleaning a 15-minute job
Cons
- Plastic aesthetic is polarizing — looks like a garden shed, not a farmhouse coop
- No run included — budget another $100-200 for a hardware-cloth run or free-range plan
- Interior space is best for 3-4 standard hens despite marketing claims of 4-6
- Higher price per square foot than wood coops of comparable capacity
Our Verdicts
Grandpas Feeders 20 lb Automatic Treadle Chicken Feeder
The only feeder we have tested that truly stops rodents and waste simultaneously. The upfront cost is high, but it pays for itself in saved feed and eliminated pest attraction within two years.
SnapLock Formex Large Chicken Coop
The lowest-maintenance, most predator-resistant coop we have tested. If you value durability over aesthetics and can add a run separately, the Formex is worth the premium.
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