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 Polar Outdoor kit come with a floor?
Answer: No, you need to provide a floor or base pad to set the sauna on. The Polar sauna will come with removable Western Red Cedar duckboard slats for the walking area.

Question: I noticed that the largest Polar Outdoor Sauna available is the PB-57H is it possible to get anything larger?
Answer: No, the largest Polar Outdoor Sauna available is the 5' x 7' model. If you are looking for a larger outdoor sauna you'll have to consider either the Avalon or Catalina Outdoor Models.

Question: What is the floor made of on the Polar outdoor sauna.
Answer: The is no sub floor in the Polar outdoor sauna or any of the other outdoor saunas. You need to provide a water proof level pad. A removable duckboard will be provided for the walking area on the inside of the sauna.