There is a unique colour coding on tie wire labels that makes choosing the right tie wire easy.
Colour coded tie wire labels make choosing your tie wire easy.
There are eight tie wire sizes, from 0.70mm to 4.00mm, each with their own special purpose, as shown in the table below
| Label colour | Wire Diameter | Suggested Uses |
| Purple | 0.70mm | Hobby, toys, flower arrangements |
| Yellow | 0.90mm | Hobby and garden work |
| Red | 1.25mm | Light tying jobs, trellis, garden |
| Blue | 1.57mm | Netting to line wires, plant support, lacing wires, garden |
| Green | 2.00mm | Heavy tie wire, hinged joint to posts |
| Tan | 2.50mm | Heavy tie wire, brush fencing |
| Black | 3.15mm | Fencing, bracing wire |
| White | 4.00mm | Fencing, horse paddock, bracing wire |