All dimensions listed below are minimum requirements.
For outside events, a contingency plan for inclement weather should be included.

Stardusters 16-piece Jazz Orchestra requires 16 chairs
with no arms.  Risers are optional.

Stardusters 12-piece Jazz Orchestra requires 12 chairs
with no arms.  Risers are optional.

Stardusters 8-piece Swing Band requires 7 chairs with no arms.