All sharp edges must be smoothed and rounded. The rim of the feeder should be sufficiently broad to prevent it from being seized by the teeth, as this encourages crib-biting. Feeders on the ground are often preferred to allow for horses' normal feeding posture. However, it can be difficult to maintain cleanliness with ground feeders. The purpose of ventilation is to change the air often enough to keep it fresh without allowing drafts.
Fresh air is essential to general wellbeing and resistance to disease.
Half-doors or wire mesh doors alone do not provide sufficient ventilation. Some form of window or air passage between the roof and walls is needed for cross-ventilation. Windows may be wire mesh or louvre. Louvres should direct air upwards inside. In a stable with dimensions 3.70 m 3.70 m, a window 0.9 m 2 is sufficient.