Singlemode and multimode fiber are both used in commercial structured cabling, but they are commonly chosen for different distance, backbone, and network planning contexts.
General Comparison
| Topic | Singlemode Fiber | Multimode Fiber |
| Typical Use | Longer-distance and broader backbone planning | Shorter-distance building and room interconnects |
| Common Context | Campus, building, or future-focused backbone planning | Interior building backbone and telecom room links |
| Project Intent | Longer-range or broader transport planning | Shorter-range high-bandwidth building connectivity |