Independent, research-based buying guides for backyard chicken keepers — coops, automatic doors, feeders and waterers, sized and compared honestly.https://coopcriteria.com/https://coopcriteria.com/posts/best-automatic-chicken-coop-doors/https://coopcriteria.com/posts/best-automatic-chicken-coop-doors/Automatic coop doors compared on safety, battery life, raccoon resistance and winter reliability — with the installation details that decide whether a door actually protects your flock.Sun, 20 Sep 2026 00:00:00 GMThttps://coopcriteria.com/posts/best-chicken-coop-for-4-chickens/https://coopcriteria.com/posts/best-chicken-coop-for-4-chickens/Four coops honestly re-rated for a 4-hen flock — including Wirecutter's starter pick — plus the space math, the expandability trap, and which budget kit actually fits.Sun, 20 Sep 2026 00:00:00 GMThttps://coopcriteria.com/posts/best-chicken-coop-for-6-chickens/https://coopcriteria.com/posts/best-chicken-coop-for-6-chickens/Six coops and kits compared for a 6-hen flock — with the 4 sq ft rule applied to every maker's claim, plus the sizing math, ventilation and predator details that actually matter.Sun, 20 Sep 2026 00:00:00 GMThttps://coopcriteria.com/posts/best-chicken-coop-for-cold-climates/https://coopcriteria.com/posts/best-chicken-coop-for-cold-climates/Cold-climate coops compared on what actually fails in winter — trapped moisture, drafts, crowded floors — with maker capacity claims re-rated for full-time winter occupancy.Sun, 20 Sep 2026 00:00:00 GMThttps://coopcriteria.com/posts/best-heated-chicken-waterers/https://coopcriteria.com/posts/best-heated-chicken-waterers/Heated waterers and heated bases compared for winter chicken keeping — capacity matching, thermostat behavior, GFCI electrical safety, and the budget setup that often beats all-in-one units.Sun, 20 Sep 2026 00:00:00 GMThttps://coopcriteria.com/posts/best-no-waste-chicken-feeders/https://coopcriteria.com/posts/best-no-waste-chicken-feeders/No-waste feeders compared on real refill intervals and waste savings — including the payback math for a treadle feeder that nobody else publishes.Sun, 20 Sep 2026 00:00:00 GMThttps://coopcriteria.com/posts/coop-capacity-claims-re-rated/https://coopcriteria.com/posts/coop-capacity-claims-re-rated/We re-rated six popular coops' capacity claims against published floor dimensions and the 4 sq ft standard. All six overstate. The dataset, method and findings inside.Sun, 20 Sep 2026 00:00:00 GMThttps://coopcriteria.com/posts/heat-plate-vs-heat-lamp/https://coopcriteria.com/posts/heat-plate-vs-heat-lamp/Heat plates and heat lamps compared on the fire mechanism, the temperature schedule chicks actually need, and a six-week electricity cost most brooder comparisons skip.Sun, 20 Sep 2026 00:00:00 GMThttps://coopcriteria.com/posts/heated-waterer-vs-heated-base/https://coopcriteria.com/posts/heated-waterer-vs-heated-base/The integrated heated waterer and the heated base + metal fountain compared on temperature floors, winter electricity, refill weight and failure cost — with the compatibility trap most guides skip.Sun, 20 Sep 2026 00:00:00 GMThttps://coopcriteria.com/posts/how-much-space-do-chickens-need/https://coopcriteria.com/posts/how-much-space-do-chickens-need/The 4 sq ft coop and 8–10 sq ft run rules explained, with a per-flock-size table, breed adjustments, roost and nest box math — and why coop boxes lie about capacity.Sun, 20 Sep 2026 00:00:00 GMT