Question: What are the differences between "pre-built", "pre-cut", "outdoor" and "portable" traditional saunas?
Answer:

Pre-Built (Modular) Saunas come in modular insulated panels that are assembled together to form a fully functional room.

Pre-Cut Sauna Kits require that you frame up your own walls and provide your own insulation. Tongue and Groove boards from the kit are provided to attached to the inside framing of your room.

Outdoor Traditional Saunas are exactly like a pre-built's in addition to having a roof package option.

Portable Traditional Saunas are small modular rooms that are capable of plugging into standard wall outlets (15amp or 20amp).

Question: Does the gray tint on the Catalina door provide privacy for the saunas?
Answer: No, the gray tint is see through but you can switch to obscure (frosted glass) for the same price.

Question: What heater upgrade options do I have with the Catalina Pre-cut Sauna Kit?
Answer: The Catalina Pre-cut Sauna Kit comes with the Catalina Brand Sauna Heater. The SWS heater is a popular upgrade for the rooms that come standard with the SBS sauna heater. You can also exchange out for an Avalon sauna heater. Both brands provide the user a true sauna experience with a slightly different design.

Question: How thick are the tongue & groove boards in a Catalina pre-cut sauna kits?
Answer: The 1" x 4" T&G boards in the Catalina Pre-Cut sauna kits have an actual thickness of 11/16". This is thicker than the standard within the industry of ½" thickness.