These honey-colored domestic-grown bamboo poles are available in four sizes.  The sizes (from the left) are: 2″ diameter, 2.5″ diameter, 3″ diameter and 4″-6″ diameter.  As can be seen in the above photo, the culm section at the base of the larger size poles are spaced very close together but the farther up the pole you look (see picture below), the wider apart the culm sections become.  A 10′ long pole with a 6″ diameter base may

only be 5 inches or less at the top.

 The photo below shows the beginning stage of a bamboo gazebo. The upright posts are Designer Quality Polished Bamboo Poles while the roof rafters and cross pieces are made out of Imported Bamboo Poles.