Source  Advanced Player’s Guide

Tents come in a variety of sizes and accommodate between one and 10 people. Two Small creatures count as a Medium creature, and one Large creature counts as two Medium creatures. Packing up a tent takes half as long as assembling it.

• Small/Normal: A small tent holds one Medium creature and takes 20 minutes to assemble.
• Medium: A medium tent holds two creatures and takes 30 minutes to assemble.
• Large: A large tent holds four creatures and takes 45 minutes to assemble.
• Pavilion: A huge open-air canopy, plus stakes, poles, and ropes. A pavilion holds 10 creatures and takes 90 minutes to assemble. Pavilion tents are large enough to accommodate a small fire in the center.