GT42 aluminum ladder vertical circle truss standard size as below.
Truss circle truss is 360 degree. Make a circle then need piece quantity: 360 degree/ truss section degree
| GT42-2M-180V | Diameter: 2M, A Section 180 Degree Vertical |
| GT42-3M-90V | Diameter: 3M, A Section 90 Degree Vertical |
| GT42-3M-180V | Diameter: 3M, A Section 180 Degree Vertical |
| GT42-4M-90V | Diameter: 4M, A Section 90 Degree Vertical |
| GT42-5M-45V | Diameter: 5M, A Section 45 Degree Vertical |
| GT42-6M-45V | Diameter: 6M, A Section 45 Degree Vertical |
| GT42-7M-45V | Diameter: 7M, A Section 45 Degree Vertical |
| GT42-8M-45V | Diameter: 8M, A Section 45 Degree Vertical |
| GT42-9M-45V | Diameter: 9M, A Section 45 Degree Vertical |
| GT42-10M-30V | Diameter: 10M, A Section 30 Degree Vertical |
| GT42-11M-30V | Diameter: 11M, A Section 30 Degree Vertical |
| GT42-12M-30V | Diameter: 12M, A Section 30 Degree Vertical |
| GT42-13M-30V | Diameter: 13M, A Section 30 Degree Vertical |
| GT42-14M-30V | Diameter: 14M, A Section 30 Degree Vertical |
| GT42-15M-30V | Diameter: 15M, A Section 30 Degree Vertical |
