SQROUR NEWEST CONCEPT INCORPORATES A BLEND OF FEATURES FROM OUR OTHER SAUNAS AND THEN SOME As with our other saunas, we try to keep things simple, natural and innovative while still providing flexibility to individualize your sauna. Exterior Heavy duty corrugated metal siding. Standard colour is black. Other colours are available as special order. Interior Three wood types to choose from: Select Tight Knot Cedar, Clear Cedar, or Thermally Modified Wood.