Exercise paddocks are usually 1 acre or less. Paddocks designed to provide forage and make up a portion of the horses nutrient requirements need to contain about 2 acres per horse. Fencing requirements for this area dictate strength, visibility and safety. Horses in small areas tend to run into fences. Paddock fencing should be high at least 4.5 ft.
Higher fences discourage fighting across the fence and discourage attempts at jumping out.
Stallion paddocks are usually double-fenced with lanes separating other pastures. Type of Product Approx. The lanes need to be wide enough for equipment and to insure that horses cannot reach across and fight. See table 2 for lumber size recommendations and table 3 for spacing. 2 or a 4x5 post.