Beyond the signs that you frequently see outside of a business, there are also a number of interior signs that can display your logo throughout the business or showcase any policies/regulations, directions, or services. While a square or rectangular sign can always be mounted onto a wall, another common type of interior sign is routed logos or letters. Metal and sign foam can be routed to individual letters, logos, or shapes which can then be mounted directly onto a wall or standoff from a wall.