| Interest rate | Model | LMRS | Difference | Difference (%) |
| Lodgepole pine | ||||
| 3% | 5096 | 4310 | 786 | 18.2% |
| 4% | 3767 | 2820 | 947 | 33.6% |
| 5% | 2780 | 1814 | 966 | 53.2% |
| Douglas-fir | ||||
| 3% | 85172 | 77403 | 7770 | 10.0% |
| 4% | 58758 | 53582 | 5176 | 9.7% |
| 5% | 41914 | 38378 | 3536 | 9.2% |