For years post and rail has remained a popular option for horse fencing thanks to its ease of erection, longevity and pleasing looks. Post and rail is a clear, easily seen barrier for the horse and is a suitable option whatever the size of horse fence required, blending easily with the natural landscape. Available in pressure treated, chestnut and pressure creosoted to reduce cribbing. Post and rail is a clear, easily seen barrier for the horse and is a suitable option whatever the size of horse fence required, blending easily with the natural landscape. Available in pressure treated, chestnut and pressure creosoted to reduce cribbing.