A device for maintaining recommended spacing during siding installation contains a main body, an extended body, an extruding body, a first channel, and a second channel. The first channel and the second channel are used to receiving a siding panel. When the siding panel is received, a first stop and a second stop of the extruding body is used to rest the device against a previously installed siding panel. Since the siding panel is stationary against the previously installed siding panel, a constant space can be maintained between the two siding panels. In addition to installing the siding panel, the device can also be used when installing siding butt-joints. In order to do so, a first receiving channel and a second receiving channel are provided.