Indoor Percussion consists of the percussion section of the band.  It combines elements of music performance, marching, and theater.  It is a complete indoor ensemble with music that is rich and rhythmic with an array of tones and melodies. An all drum line ensemble typically provides the listener with heart-throbbing, complicated rhythms, and hand clapping beats. Bands choreograph routines to provide audiences with a moving visual experience that tells a story based on the selected music.

The Southern Nash Indoor Percussion ensemble meets in the winter months after Marching Band season and competes in various competitions.