What tool is necessary to disengage carpet from tackless strips?

The tool necessary to disengage carpet from tackless strips is a knee kicker. This device is specifically designed to stretch carpet so that it fits snugly over the tackless strips, which are the thin strips with sharp nails that hold the carpet in place along the edges of the room. The knee kicker allows for controlled movement to ensure that the carpet is properly engaged with the tackless strips.

When using a knee kicker, the technician can push the carpet into the tackless strip without the risk of damaging the carpet fibers or the underlying pad. This is crucial during installation or removal of carpet, as properly engaging or disengaging the carpet helps maintain its integrity and appearance.

The other tools listed have different functions. A carpet knife is primarily used for cutting carpet, a staple gun is not typically used for disconnecting carpet from tackless strips, and a measuring tape is for measuring lengths and distances. Therefore, the knee kicker is the appropriate choice for the task of disengaging carpet from tackless strips.