The invention relates to a forest machine (10), which comprises - at least one two-part chassis (12), comprising a first chassis (14) and a second chassis (16) articulated one after the other, - runners (18) arranged in connection with both the first ( 14) as the second chassis (16) on both sides of the first chassis (14) and the second chassis (16) for supporting the forest machine (10) against the ground, - a motor (22) for providing driving force associated with the first chassis (14)； - power transmission (24) for transmitting power from the motor (22) to the runners (18) and - cargo space (26) for transporting a load supporting the second chassis (16) extending at least in substantially on top of the second chassis (16) and at least partly on top of the running gear (18) of the second chassis (16) in the operating position of the forest machine (10). The second chassis (16) comprises two longitudinal members (48) connected to each other at least on the front side of the cargo space (26), which longitudinal members (48) are spaced apart in the transverse direction of the forestry machine (10) at least over a portion of the cargo space ( 26) length, in which forest machine the said cargo space (26) extends in the height direction of the forest machine (10) to between the longitudinal parts (48) and said power transmission (24) is arranged in the direction of movement of the forest machine (10) on the front side of the loading space (26) for power distribution to the runners (18) from the front of the load compartment (26).Keksintö koskee metsäkonetta (10), johon kuuluu - ainakin kaksiosainen runko (12), käsittäen ensimmäisen rungon (14) ja toisen rungon (16) nivellettynä peräkkäin, - pyörästöt (18) sovitettuina sekä ensimmäisen rungon (14) että toisen rungon (16) yhteyteen molemmin puolin ensimmäistä runkoa (14) ja toista runkoa (16) metsäkoneen (10) tukemiseksi maahan, - moottori (22) käyttövoiman aikaansaamiseksi sovitettuna ensimmäisen rungon (14) yhteyteen, -
