North Carolina 3’X5′ State Flag became the 12th state to ratify the Constitution on November 21st, 1789. The flag of the state of North Carolina originally had a red bar on the left-hand side, with a blue bar at the top and white at the bottom. Flags Unlimited offers the North Carolina flag in several sizes and materials. From 3’x5′ up to 12’x18′. Flags are available in durable nylon and strong polyester material. We also offer complete indoor flag sets.