A method of thermally drying wood using a drying plant comprising at least one drying chamber, said method comprising the following steps: - injecting a heat transfer gas comprising CO 2 at a chosen pressure and temperature into the drying chamber; - force the circulation of the heat transfer gas through the drying chamber; - heating the heat transfer gas circulating in the drying chamber according to a first phase bringing the average temperature of the drying chamber from ambient temperature up to 80°C according to a chosen temperature gradient in order to extract the free water from the wood to be dried, then a second phase from 80°C up to 140°C according to the specific drying profile of the wood to be dried, which comprises a specific temperature increase profile and allows to extract the bound water specific to the wood to be dried, characterised in that the method further comprises the following steps: - extracting the binary gas mixture comprising CO 2 and water from the drying chamber in the form of high temperature steam and discharging the water thus extracted from the wood load from the chamber; - control the injection, circulation, reheating and evacuation stages according to programmes, set values and appropriate drying times based on the specific moisture evolution curve at the heart of the wood as a function of the drying time and temperature increase sequencing specific to the type of wood to be dried; - and collect all the data formed by the variations in physical metrological measurements, compare them with the set values dictated by the specific profile of the wood to be dried, and readjust the operation of the drying installation if there are any deviations from the set values. - injecting a heat transfer gas comprising CO 2 at a chosen pressure and temperature into the drying chamber; - force the circulation of the heat transfer gas through the drying chamber; - heating the heat transfer gas circulating in the drying chamber according to a first phase bringing the average temperature of the drying chamber from ambient temperature up to 80°C according to a chosen temperature gradient in order to extract the free water from the wood to be dried, then a second phase from 80°C up to 140°C according to the specific drying profile of the wood to be dried, which comprises a specific temperature increase profile and allows to extract the bound water specific to the wood to be dried, characterised in that the method further comprises the following steps: - extracting the binary gas mixture comprising CO 2 and water from the drying chamber in the form of high temperature steam and discharging the water thus extracted from the wood load from the chamber; - control the injection, circulation, reheating and evacuation stages according to programmes, set values and appropriate drying times based on the specific moisture evolution curve at the heart of the wood as a function of the drying time and temperature increase sequencing specific to the type of wood to be dried; - and collect all the data formed by the variations in physical metrological measurements, compare them with the set values dictated by the specific profile of the wood to be dried, and readjust the operation of the drying installation if there are any deviations from the set values. - extracting the binary gas mixture comprising CO 2 and water from the drying chamber in the form of high temperature steam and discharging the water thus extracted from the wood load from the chamber; - control the injection, circulation, reheating and evacuation stages according to programmes, set values and appropriate drying times based on the specific moisture evolution curve at the heart of the wood as a function of the drying time and temperature increase sequencing specific to the type of wood to be dried; - and collect all the data formed by the variations in physical metrological measurements, compare them with the set values dictated by the specific profile of the wood to be dried, and readjust the operation of the drying installation if there are any deviations from the set values.