Attaching steel plates to a timber column with metal connectors is a very effective method to increase the buckling load of the column. This paper deals with the elastic flexural buckling load of a timber column reinforced with steel plates attached by metal connectors equally on both side of the member. According to the theoretical research presented herein, the elastic flexural buckling load of a reinforced timber column is relatively greater than that of a timber column and the effective length of the reinforced timber column subjected to flexural buckling about the principal axis is represented by two parameters respectively.