Construction costs are currently skyrocketing

And even if the price remained the same: you can stack wood at home, but not gas. And whether enough gas will still come from the network / be allowed to be withdrawn in winter is also a matter...

Heating with wood is not everyone's thing. I've seen wood-burning stoves during some house viewings that were only used once in a blue moon. Many single-family homes don't even have a fireplace. In addition, if a wood stove was installed, it is usually a purely cozy stove. So no basic stoves with heat storage mass. ... and if everyone now jumps on wood, the price will quickly skyrocket. I don't think there will be a correlation to the gas price. *CRYSTAL BALL*

I am just saying that the price of wood for construction has a lower limit, namely that of thermal usability in connection with easy storability. As you yourself say:

"I have already seen wood-burning stoves during some house viewings that were only used once in a blue moon."

What will the owners of these houses do when gas is many times as expensive as it is today or, in extremo, nothing comes out of the pipeline, the briquette dealer is sold out, but wood itself from the building materials specialist trade is comparatively cheap? Exactly, order and unpack the circular saw...:rolleyes:

So we have thus found a natural floor for the price of wood.

What will the owners of these houses do when gas is dozens of times more expensive than it is today or, in extreme cases, nothing comes out of the pipeline, the briquette dealer is sold out but wood itself is comparatively cheap even from the building materials store? Exactly, order and unpack the circular saw...:rolleyes:

So we have found a natural floor for the price of wood.

I can hardly imagine some owners holding a chainsaw or circular saw. :) The expertise to make a fire, well, yes. :) And then the convenience. I guess lots of complaining combined with electric heating. The price of wood is only secondary here. People prefer to complain a lot. My guess.

I have already chopped several cubic meters this year.

Report from Focus:

Sale of residential houses in Germany has dropped by half
This fits: In May 2022, fewer than half as many residential houses were sold in Germany as the average of the past five years, calculated the British real estate service provider Savills. Demand is declining – the effect on prices is likely to follow immediately.

"All signs indicate that slightly falling prices are to be expected," predicts IW expert Ralph Henge. Experts from the online portal Immowelt also believe that the boom is already coming to an end this year: "The time of large price increases is probably over."
For ten of the 14 German cities with more than 500,000 inhabitants, they expect stagnating to slightly declining purchase prices by December of this year in a current price estimate.

Also Deutsche Bank confident: "Real estate boom will end sooner rather than later"
And Jochen Möbert from Deutsche BankResearch also commits himself: "We are pretty sure that the real estate boom in Germany will end in this decade – and more likely sooner than later."

But the issue is no longer just an economic one. At today’s Real Estate Industry Day in Berlin, it is becoming a political issue. The industry is concerned. And the Minister of Construction is concerned as well.
For Oliver Wittke, CEO of the Central Real Estate Committee (ZIA), a fourfold approach must now follow to make building attractive again: debureaucratization, deregulation, flexibilization, and acceleration. Only in this way can one react to a crisis.
Wittke believes: "If we had tried to rebuild Germany after World War II with today’s building and planning law, we would still be sitting on the ruins today." A general obligation for solar roofs on new buildings, for example, Wittke simply considers to be "nonsense."

I do not assume that nothing will come out of the gas pipeline anymore. The storage facilities are almost sufficient for the winter even without Russian gas. Accordingly, they will make sure to fill them up beforehand. And in case of doubt, they will make a few energy-intensive companies (cement plants, etc.) consider a shutdown appealing. With the high prices, many people will discover their frugality anyway. I rather do not believe that we will start sawing construction timber.

My uncle has a small piece of forest 50km outside our city (Sachsen-Anhalt) and for over 20 years, last week was the first time someone called him and asked if they could get wood from the forest... :D so there seems to be interest apparently My uncle has the piece only because he can only get to my aunt's garden from there