| Gage Designation System | ||
| Dimensions | ||
| Single Grid | Structural Representation | |
| 0 ° | AA pattern |  |
| Large Gauge Patterns |  |
|
| 45 ° | AB pattern |  |
| Two Grids | Structural Representation | |
| Two axes 45 ° | HA pattern |  |
| Two axes 90 ° | BA pattern |  |
| Tee axes 90 ° | BB pattern |  |
| Two axes 90 ° tee stacked rosette | BC pattern |  |
| Parallel axes | FB pattern |  |
| Three Grids | Structural Representation | |
| Three axes 45 ° | CA pattern |  |
| Three axes 45 ° tee stacked rosette | CB pattern |  |
| Three axes 60 ° | CC pattern |  |
| Three axes 120 ° | CD pattern |  |
| Four Grids | Structural Representation | |
| Two axes 45 ° | EA pattern |  |
| Residual Stress Determination |  |
|
| Crack Propagation |  |
|