Kent, Washington

Redwood Outdoors

Heat-treated hemlock barrel, cabin and indoor saunas, and hemlock-clad cold plunges.

Redwood Outdoors sells traditional saunas built from Canadian heat-treated hemlock, a thermowood the maker says is heated above 400 degrees to improve moisture resistance. Models run from a one-person cube to eight-person cabins, each with a choice of Harvia or Homecraft heaters, and the brand also offers hemlock-clad all-in-one cold plunges that chill to 37 degrees or heat to 104.

Saunas

Cold plunges

Brevley & Sons is an independent retailer and guide. Prices and specifications are from Redwood Outdoors's public site, checked October 23, 2026. Product names belong to their makers.