Standard uprights are made of heavy duty 2" diameter anodized aluminum, and are equipped with a set of 4 slots positioned every 90 degrees 3/4" from the top. Uprights 6' and over have 2 sets of 4 slots (one set at 3' from the bottom and one set at the top).
| Size |
Minimum Base Size |
| 3' |
8" x 14" 6 lb. |
| 6' |
14" x 16" 12 lb. |
| 8' |
14" x 16" 12 lb. |
| 10' |
18" x 18" 17.5 lb. |