@Cold Canadian Timber sauna sounds cool, I'd love to hear more about it. I was just talking to the neighbor about different saunas last week, he told me about his friend who built a sauna with sort of an open floor, just 2*4:s standing on their side, with about 1" spacing. He said it was the best sauna he's ever been in. Super easy to keep clean, no worrying about water or dirt, and you get a wonderful steam as the air is so oxygenated.
I watched a show on sauna's in different parts of the world and saw what you describe , but because our climate gets so cold I would have a insulated floor for the winter months , gives reason to go and roll in the snow ...lol.... But it will be five inch square timbers stacked , a octagon shape is what I am striving for , a chalet style of sorts , most likely a metal roof , although I would prefer a cedar shack shingle , but that becomes costly . I want three bench's to stretch out on , maybe to built in recliner style chairs ? and I have a 60's cast iron barrel , about fifteen gallon which will be converted into the stove with the wire wrap around it for the stones , the top would be grated as well as it would hold the water in what ever container I decide to use .Will have a vent on the roof along with two skylites ....got them on a garage sale .....to sit back and watch the snow fall .....depending on if I do a dry sauna heat that day or a steam ? . The whole interior will be cedar lined to make it rot proof as well as give that cedar aroma ....aromatic cedar is a must . Just add a dim light , a bit of music and a cool drink and let the stress fall off .