Post and Panel signs are available in the market in a variety of sizes and shapes. These signs can be round, square, rectangular, triangle, or any other shape. However, all signs are not always circular in shape. The intended use of a post and panel sign is one of the key elements that determines the shape.

While signs used for branding or advertising may be more asymmetrical in shape to attract attention, signs used for wayfinding or directional purpose may be more rectangular or arrow-shaped.

Another factor that affects the shape of post and panel sign is the environment in which it is being placed. For example, to fit within the restrictions, a sign that will be mounted on a pole might need to be more rectangular shaped.

Additionally, another factor that can affect the shape of post and panel signs is the material used to make them. While some materials, like plastic or foam, can be more easily moulded into rectangular or square panels, other materials like wood or metal may be better suited for asymmetrical shapes.

Hence, to conclude, a variety of factors affect the shape of post and panel signs, including the intended use, environment, and material used to make them. Businesses and organisations need to design effective signage that attracts attention and effectively conveys their message while keeping in mind these factors.

Original Source: https://www.quora.com/What-makes-signs-have-different-shapes-Why-theyre-not-all-round/answer/Iris-Signs