While the external dimensions may vary slightly between brands, most 3-person spa hot tubs fall within the following range: • Length: 1800 – 2000 mm • Width: 1200 – 1500 mm • Height: 700 – 850 mm

Based on theoretical calculations and ergonomic analysis, the 3x3 spa hot tub pavilion has the following practical benefits: 1. Optimal comfortable seating capacity: 6-7 people; 2. Maximum safe seating capacity: 8 people; 3. Increasing the number of people significantly reduces comfort and may pose structural and safety risks.