At our outdoor bench factory, the longest standard outdoor bench is designed to seat up to eight adults comfortably. This estimate is based on a practical seat width of roughly 600 mm per person, supported by a reinforced frame, sturdy legs, and a center brace for balanced stability. For larger public spaces, campuses, parks, and commercial projects, we can manufacture longer custom benches in modular sections; the seating capacity then increases according to the usable seat length. As a general planning guide, allow about 600–650 mm per adult and leave sensible clearance at the ends and around accessible routes. Therefore, the direct answer is that our longest standard outdoor bench seats eight adults, while custom factory-built runs can be engineered to accommodate more people depending on the project requirements.