Build your own sauna with a sloping roof - suggestions/notes/plans

3D planning in full centimeters, there's probably no program for that, no one is even talking about the angles yet, digital 90 degrees are already cool, I would measure and build -3cm, and compensate at the connections to the wall with moldings, like in kitchen installation

I would measure and build -3cm,

Only that these 3 cm here are already the ones that decide yes or no due to regular head bumping when lying down, if I remember correctly. Lot difference deductions literally hurt :-(

That's right. I will take the differences with me for now, the front wall needs to be even, the rest will follow. I will probably finish the rear ventilation layer today, then I can measure and mark everything. I still have to drill and pull in the holes for the cables, etc.

Day's work done, now it's off to the bathtub (I did say I’ve acquired a taste for it :) )

...
It's just annoying because I need an empty conduit to the control unit's operating unit, where an RJ10 plug must fit. That will be tricky...

Nope, you can just run CAT7(A) installation cable through, it's more durable anyway. One side socket?, other side a matching plug (e.g. Metz Connect RJ45 Stecker Cat.6A feldkonfektionierbar) use.

That's what I always tell the people here who dream that their house would be built by precision mechanics exactly to fit their wardrobe :)

and looked stupid because our home builder compensated 5mm (was about 5mm out of plumb) on the 9m high gable front. Just expected more precision :cool: