Spike (stagecraft)

This marking is used to show the correct position for set pieces, furniture, actors and other items which move during the course of a performance and are required to stop or be placed in a specific location.

[2]) The placement of spikes in film and television is typically the responsibility of a camera assistant (North America) or grip (Europe).

Spike tape's narrow width means that it can be quickly torn by hand, and its tight weave of cotton fibers allows for straight tearing without stretching.

Spike tape may also be fluorescent (in which case it is made of plastic or vinyl rather than cotton) so that it can be easily seen by the running crews moving set pieces during a dark scene change.

In some cases it may be preferred to use clear vinyl tape, such as the type used to splice dance flooring, to protect spike marks as it is more easily removed from stage surfaces and does not leave an adhesive residue.

a roll of spike tape and an example of a stage marking, or a "spike."
Spike tape is a cotton cloth tape used to create temporary markings on stages and theatrical sets.