This study aimed to assess the initial development of Eucalyptus benthamii implanted in four different spacing. The experiment was conducted in random block design, using the following spacing: 2x3, 3x3, 3x4 and 4x4. We used height and diameter at breast heights (DBH) data collected at the ages of 2 and 3 years to assess the linear correlation between the variables, annual height and diameter increase, and the volumetric production at 3 years old. The results did not show significant difference of individual height and volume in the performed assessments. However, it was observed a higher diameter increment according to higher vital area availability. The highest productivity rate was of 66.55 m³ ha-1 , registered in a 2x3 spacing between plants, while in the biggest spacing adopted (4x4) the productivity was of only 31.61 m³ ha-1 , at three years old. It was concluded that there's influence of the spacing on the dendrometric variables, mainly in diameter and volume.

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