- Location: Outdoor signs should be manufactured from weatherproof materials unless they're mounted inside a waterproof frame. Indoor signs are less water-fast, but many are made of durable plastic or paper to enhance their longevity.
- Length of use: Signs intended for long-term or permanent use are a little bit more expensive, yet more robust compared to those intended for short-term use
- Size: For example, larger signs must be robust and may need secondary support structures
- Mounting: Some signs are self-supporting, while others can be fixed to an existing frame, base or wall
- Material: Signs can be printed on aluminium, forex, cardboard, as well as a wide range of other materials