For paddocks or smaller enclosures where horses may be turned out for exercise or play, a height of 4 to 4.5 feet (1.2 to 1.4 meters) is usually adequate. However, if there are concerns about horses jumping or escaping, a higher fence may be necessary.
As for gates, it's important to consider both the height and the width to ensure they are appropriate for horses to safely pass through. The gate height should be consistent with the fence height or slightly higher, and the width should be wide enough to allow horses to walk or trot through comfortably. A width of 4 feet (1.2 meters) is generally recommended for gates that horses will regularly use.