What is the factor used to determine occupant load in a dining room without fixed seating per net area?

In determining occupant load in a dining room without fixed seating, the relevant factor is 15 square feet per person when calculating based on net area. This number reflects a guideline for how much space should be allocated for each occupant in a space where tables and chairs can be rearranged.

Using this factor allows for accommodating diners as they move freely throughout the area, ensuring that the space is not only adequate for physical seating but also for circulation and accessibility. The 15-square-foot measure is well-established in building and safety codes, considering the average space that each person occupies when seated and allows for reasonable movement within the dining room.

In contrast, other factors such as 5, 10, or 20 square feet may pertain to different types of spaces or usages, but for dining areas specifically, the 15 square feet per person requirement ensures both safety and comfort within the space.