With so many advantages over traditional timber, Slotted Concrete Posts have become the most popular choice for panel fencing. Like all Concrete Posts, they are made from high strength concrete, reinforced for ultimate durability and long life. Easy to install and cost-effective, Slotted Concrete Posts are completely unaffected by moisture and rot and will give years of extra life to any panel fencing installation. Slotted Posts are available in five sizes.