How big should a single alpaca shelter be?

A single alpaca shelter should ideally provide at least 50 to 100 square feet of space per alpaca to ensure comfort and adequate protection from the elements. The shelter should be well-ventilated, insulated, and have enough room for the alpacas to move around freely. Additionally, it should include space for feeding, bedding, and access to clean water. It's important to consider the number of alpacas and their social needs, as they are herd animals and thrive in groups.