As stated by the maker or seller. Specs can change between batches and sellers; confirm on the listing.
From the maker
20.8-Inch 3-Frame Chicken Tunnel: Creates a 63 in long route with a 20.8 x 20.8 in cross-section. Its compact profile fits beside coops, fences, and raised beds while giving hens a defined path for outdoor roaming
Galvanized Mesh Enclosure: Powder-coated galvanized steel framing, expanded-metal mesh, and a ventilated end door cover the sides and top while maintaining airflow and visibility. The assembled tunnel helps limit access from common…
Updated Connections: Smaller corner fittings and compact roof connectors replace bulkier hardware. Selected parallel joints use two flat connector plates, while bolt-fastened points align 20.8 inches panels for straight or L-shaped assembly
Open Mesh Upkeep: Ventilated mesh leaves the floor open to grass and soil, letting loose debris pass through rather than collect on a solid floor. Rinse metal surfaces as needed, then let the open-air structure drain and dry naturally
Straight Or L-Shaped Layouts: Arrange the three-frame kit in a verified straight or L-shaped layout to guide chickens along a coop, fence, or planting area while they forage at ground level. Extra kits are required for longer routes
Full listing title: Anleolife Chicken Tunnel, Predator Proof Galvanized Modular Chicken Run | 20.8" Heavy Duty Chicken Coop Modular Extension for Outside Poultry Coop as Dog, Hens, Rabbits, Ducks and Small Pets