Hot Tub Dimensions: 4-Person vs 6-Person Sizes
A 4-person versus 6-person hot tub choice starts with dimensions and normal use. In these two examples, Cove 4 measures 78.7 inches square and holds 277 gallons; Harbor 6 measures 90.6 inches square and holds 396 gallons. Share your ZIP code for a written delivery scope.
Updated October 26, 2026 · For US project planning
4-person vs 6-person hot tub dimensions and gallons
Cove 4 starts at $3,499 and measures 78.7 × 78.7 × 37.8 inches. It has two loungers, two upright seats, a 277-gallon capacity and a listed dry weight of 661 pounds.
Harbor 6 starts at $3,699 and measures 90.6 × 90.6 × 37.4 inches. It has two loungers, four upright seats, a 396-gallon capacity and a listed dry weight of 705 pounds. The base-price difference is modest, but Harbor 6 needs roughly one additional foot in each plan dimension and holds 119 more gallons.
- Cove 4: 78.7 inches square, 277 gallons, 2 loungers and 2 upright seats
- Harbor 6: 90.6 inches square, 396 gallons, 2 loungers and 4 upright seats
- Both footprints need additional clearance for access, cover movement and service
Choose for the normal evening
A couple that mainly wants two loungers and occasionally hosts two guests may use Cove 4 efficiently. A family that regularly needs more upright seats may benefit from Harbor 6. Empty seats still occupy backyard space and add water volume, so maximum capacity should not be the only goal.
- How many people will use the spa weekly?
- How many prefer loungers versus upright seats?
- Will children, taller adults or guests share the footwell?
- Is the extra capacity worth the larger footprint for this household?
Check the site and route
Mark both footprints on the proposed patio, then add room for steps, the open cover and service access. Measure every gate, turn, slope and overhead obstruction between the curb and final position.
A qualified local professional should evaluate the completed load and base or deck. A licensed electrician should confirm the model-specific electrical plan and local requirements before delivery.
Compare delivered scopes
Request written quotations using the same ZIP code, delivery conditions and site information. Confirm exactly what is included in the base product, freight, unloading and placement. This prevents a small difference in displayed product price from obscuring a much larger difference in project scope.
Product specifications and project requirements should be reconfirmed in the written quotation. Use qualified local professionals for structural, electrical, permitting and installation decisions.
