Acta Scientiarum Polonorum
Silvarum Colendarum Ratio et Industria Lignaria

The issue addressed in the paper discusses the potential optimization ability of the filling space of transport vehicles, which was verified in relation to the actual dimensions of the transported roundwood assortments. This problem was analyzed on the background of the most important determinants of wood transport in the logistics process, while referring to the opinions of entrepreneurs implementing transport services for forestry in selected regions of Poland. The research was carried out by the method of diagnostic survey, using the technique of individual in-depth interview (IDI). The respondents' answers were subjected to statistical verification. The obtained results were compared and discussed, finally formulating the most important conclusions and recommendations. It was revealed that the filling level of the transport vehicles' cargo space is a derivative of the dimensions of the transported timber assortments. Standardizing the length of roundwood could positively affect the effective filling of the cargo space and optimization of forest transport costs.