Apple Outdoor Supply Chicken Coop Window 14" W x 21" H, Flush Mount Tilt Out, Brown Review (2026)

Size and rough opening

This window measures 14 inches wide by 21 inches tall with a specified rough opening of 14 by 21.25 inches, a detail that matters because getting this measurement wrong is the most common reason a flush mount window ends up crooked or gapped at the edges. Builders framing a new coop can plan the stud spacing around this exact opening from the start, while anyone retrofitting an existing coop wall will need to cut carefully to this size rather than eyeballing it. Because the window is flush mount rather than surface mount, it sits within the wall thickness for a cleaner finished look, but that also means there is less room for error in the cut than with a simpler surface mounted panel that can overlap a slightly rough hole.

Glass, screen, and hardware

The window uses tempered safety glass, which resists shattering into sharp shards the way ordinary glass would if struck, an important detail on a structure that gets knocked around by weather, wildlife, and daily chores. A wire mesh screen sits behind the glass opening to keep flying insects and small predators out whenever the window is tilted open for airflow. A secure latch with a detent ball holds the tilt-out sash in position, giving a keeper the ability to lock the window fully closed in cold weather or prop it open partway for ventilation without it swinging loose in wind. Pre-drilled holes and a metal nailing rim are included to simplify mounting into the framed opening.

Ventilation control with a tilt-out design

The sash tilts open to about 13.5 inches, giving a wide, adjustable airflow path compared with a fixed screened vent that only offers one level of ventilation. This matters most in summer, when a coop needs strong airflow to prevent heat buildup, and in winter, when the same window needs to close fully to hold in warmth while still allowing occasional venting on milder days. Having a glass window rather than only a screened opening also lets some daylight into the coop without needing to leave an opening exposed to rain, wind, or predators, which is a real advantage over a simple cut out vent covered only in hardware cloth.

Fit with different coop styles

The brown frame is designed to blend with natural wood siding and barn style coops, giving a more finished, built in look than mismatched trim colors sometimes create on a DIY coop. Because it is a flush mount design, it works best set into a properly framed wall section rather than bolted onto the surface of thinner paneling, so it suits coops built from dimensional lumber more than coops made from thin plywood or reused pallet wood without added framing. Keepers upgrading an older coop that currently has only a screened hole or no window at all will get a noticeably more finished, weather tight result switching to a proper glazed window like this one.

Trade-offs versus a simple vent

A glass window, even with a solid frame, will not insulate as well as a fully solid wall section, so coops in very cold climates may lose more heat through a window like this than through an equivalent area of insulated wall, something to weigh when deciding how many windows to add and where. Installation also demands more precision than nailing up a screened frame, since the flush mount design depends on an accurate rough opening and square framing to seal properly against wind and rain. For keepers who want the ventilation control, daylight, and finished look of a real window, these are reasonable trade-offs, but anyone prioritizing maximum insulation in a harsh winter climate may want to limit window size or add removable insulated covers for the coldest months.

Frequently asked questions