Large Metal Chicken Coop for 35 Chickens Walk in Poultry Cage Heavy Duty Flat Shaped Chicken Run House with Waterproof and Anti-UV Cover, 20 x 10 x 6.6 ft Review (2026)

Who needs a run this large

This walk-in run is sized for keepers running a real homestead flock rather than a backyard handful of hens. At 20 by 10 by 6.6 feet and rated for up to 35 chickens, it suits households that are scaling up egg production, raising meat birds in batches, or combining several smaller groups into one shared range. The flat-shaped roofline keeps the structure lower and more wind resistant than a tall peaked run of the same footprint, which can matter in open, breezy yards. Anyone with fewer than a dozen birds or a small suburban lot will find this run oversized, both in the space it needs and in the setup effort involved.

Frame, cover and capacity explained

The frame is galvanized steel, which the manufacturer says resists rust, corrosion and fading, with heavy-duty steel used at the pivot points to keep a structure this size from twisting or sagging over time. A waterproof, anti-UV cover shades a large portion of the pen and cuts down on how much direct sun and rain reach the birds and the ground below, which helps keep the run from turning to mud. The lockable safety door is built tall enough to walk through without stooping, useful for daily chores across a pen this size. Wire fencing forms the enclosure walls, giving visibility and airflow around the full 200 square foot footprint.

Setting it up and running it day to day

A run this size takes a full level section of yard and more time to assemble than a small hobby coop, since you are connecting a long run of tubing and stretching a large cover taut without leaving loose sections that catch wind. Plan on ground anchors or stakes at regular intervals around the perimeter, and check them after storms, since a structure this long has more edge for wind to catch. Because the cover is flat rather than peaked, rain and melting snow can pool on top if it is not kept reasonably tight, so periodic tightening after heavy weather is worth building into your routine rather than treating it as a one-time setup step.

Trade-offs and how it compares

The main trade-off with a flat-roof design is drainage. A peaked or spire roof sheds water on its own, while this flat style relies on tension and slope built into the cover, so it needs more attention in wet climates. Against rivals like the CHICKENPEN steeple run with a dual-coated steel frame and PVC mesh, this walnest run wins on sheer capacity for large flocks but gives up some of that reinforced predator resistance. Smaller runs from walnest itself and other brands in the same lineup top out around 20 chickens, so this is genuinely one of the larger options built for keepers who need the extra room rather than a scaled-down version of a small run.

Verdict and who should choose differently

For a keeper managing a flock in the 25 to 35 bird range, this run's size and heavy-duty frame make it a practical, purpose-built option, earning our score of 8.4 out of 10 largely on fit for the job. Choose it if you have the yard space and are prepared to maintain the flat cover through storms. If your flock is smaller, your yard is tight, or you want a self-shedding roof with less upkeep, a spire-roof walk-in run at a smaller footprint, or a reinforced steel-frame run like the CHICKENPEN, is the better starting point.

Frequently asked questions