Untreated split rail consists of poplar, pine, oak and other species of hardwood with locust posts. There is going to be a shortage of locust. If not available, they can be substituted with treated pine posts. A trailer load consists of 1050-1300 pieces of fence, considering the species of wood.
Three rail fencing is more likely found in commercial areas and consists of three 11ft rails with a 7″ post on 16in centers making approximately 48″ high fence.
Four rail fencing is available with 7′ or 8′ posts on 12″ centers.