Solid wood house - Various offers are available

Hello everyone,

We have decided to build a solid wood house.
We now have various offers;

Exterior wall option 1 (very expensive):

100mm solid wood
+ 200mm wood fiberboard
+ 60mm wood fiberboard
= 360mm wall thickness
The provider says this house stays cool and hardly needs heating in winter.

Exterior wall option 2 (very inexpensive):

100mm solid wood
+ 160mm insulation stud (blown with wood fiber flakes)
+ 40mm wood fiberboard
= 300mm wall thickness
Offered with air-water heat pump and underfloor heating

Exterior wall option 3: Lignotrend (mid-price)

110mm cross-laminated timber ribs
+ insulation stud width selectable (blown with cellulose flakes)

Has anyone already had experience with one of these construction methods?
Are there any experts here who recommend a building method?

Thank you all

100mm solid wood + 200mm wood fiberboard + 60mm wood fiberboard = 360mm wall thickness

And what are supposed to be the surfaces there, or what else is added for that?

And what are supposed to be the surfaces there, or what else is added for that?

That is simply the wall construction - the question is whether loose fill or panels?

Does more wall = more insulation also apply to wood fiberboard?

We have a solid wood house.

From inside to outside
Paint + painter's fleece or tiles
Drywall
150 mm solid wood
300 mm insulation banned Neopor.
Reinforcement
Plaster

Passive house

Check out [wir leben Haus].

Not heated for 1 week. Still under construction. Comment from my aunt: nice and warm, are you heating it a bit?

This is simply the wall structure

Exactly, at first glance only a 60 mm difference - hence the question of how much this shifts further with plaster or brickwork etc.

Hello, we are currently building a solid wood house using Dübelholz construction: from inside to outside 12.5 mm drywall 100 mm wood 13 mm OSB as a windproofing board 240 mm cellulose insulation 60 mm wood fiberboard Reinforcement and plaster Regards and a Happy New Year to everyone!