Round Sign Post by SmartSign, Medium Weight | 8' Tall Galvanized Steel Post - Pack of 1 DURABILITY. Posts are made of Galvanized steel and are rust-proof, durable and sturdy. Posts have a wall thickness of 60 mil. INSTALLATION. Posts are ideal for street sign installations. Order with street sign attachment assembly to complete your street sign installation. Pack contains 1 post. MEDIUM WEIGHT. Posts weigh 1.625 pounds per foot of length.