A 10x20 tent (200 sq. ft.) typically accommodates 15-20 people for a comfortable seated dinner with tables, or up to 30-35 people for a standing-only cocktail-style event. It is ideal for small, intimate gatherings, covering 5-6 tables, or serving as a vendor booth at markets. 
Key Capacity Guidelines for a 10x20 Tent:
Seated (Tables/Chairs): 16–20 people (5-6 tables).
Standing (Cocktail): 30–35 people.
Theater (Row Seating): 30 people.
Tables: 5-6 Rectangular (6 ft) or 4 Round (60-inch) tables fit with room for movement.