Category-Level Size Discussion Framework
| Category | Sizing Context | Status |
|---|---|---|
| PVC | Branch lines, planned route sections, utility segments | TODO: VERIFY exact size chart |
| HDPE | Long routes, bend segments, terrain variation | TODO: VERIFY exact size chart |
| Black Pipes | OEM / industrial requirement dimensions | Requirement-based discussion |
| Replacement Cores | Roll diameter and winding-machine compatibility | Requirement-based discussion |