What size swim spa should I buy?

Length is the spec that changes how the swim spa actually feels to swim in. - **12-14 ft:** Resistance and aquatic exercise, kids playing, tethered swimming. A tall adult swimming freestyle will feel the walls. - **15-17 ft:** The practical sweet spot. Enough water in front and behind you that stroke form stays natural at moderate current speeds. - **18-20 ft:** Room for a genuine swim lane plus, on many models, a separate seating or hot tub zone at the opposite end. Also check width and depth. Wider cabinets (around 90 in) let you swim without brushing the sides, and depths of 50-60 in keep your kick underwater instead of splashing at the surface. Finally, measure the delivery path before you commit — a 19 ft cabinet that cannot clear the side of the house is not an option regardless of how it swims.