| Species group | Age (years) | ||||||||||||
| 1-20 | 21-40 | 41-60 | 61-80 | 81-100 | 101-120 | 121-140 | 141-160 | 161-180 | 181-200 | 201+ | Other1 | ||
| Unclassified | 39.4 | 23.2 | 100.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 2.6 | |
| Unspecified hardwoods | 7.0 | 9.8 | 15.8 | 44.2 | 23.2 | 65.6 | 80.2 | 0.0 | 0.0 | 0.0 | 0.0 | 100.5 | |
| Other hardwoods | 17.0 | 9.1 | 9.3 | 8.6 | 11.2 | 16.6 | 31.2 | 49.5 | 77.6 | 85.6 | 40.0 | 72.7 | |
| Maple | 12.1 | 7.1 | 5.4 | 5.5 | 6.1 | 11.5 | 25.2 | 34.2 | 76.9 | 0.0 | 71.5 | 100.5 | |
| Birch | 6.4 | 4.7 | 4.6 | 4.7 | 5.1 | 10.2 | 13.1 | 27.0 | 33.5 | 55.6 | 72.1 | 62.5 | |
| Poplar | 4.5 | 3.4 | 3.5 | 3.2 | 3.5 | 4.8 | 8.5 | 14.1 | 24.3 | 29.2 | 30.7 | 74.7 | |
| Unspecified conifers | 6.2 | 6.9 | 16.1 | 27.7 | 25.4 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 60.4 | |
| Cedar & other conifers | 18.4 | 14.5 | 10.6 | 9.3 | 8.4 | 10.2 | 13.7 | 20.1 | 24.1 | 21.7 | 8.3 | 0.0 | |
| Larch | 11.9 | 6.4 | 4.7 | 5.2 | 5.9 | 7.5 | 9.2 | 16.4 | 23.5 | 27.0 | 22.9 | 62.7 | |
| Douglas-fir | 17.1 | 17.8 | 15.2 | 13.7 | 10.7 | 9.7 | 9.9 | 10.7 | 15.0 | 17.0 | 11.1 | 0.0 | |
| Hemlock | 17.8 | 15.2 | 13.9 | 14.7 | 12.5 | 15.1 | 13.7 | 18.8 | 14.1 | 24.1 | 5.7 | 0.0 | |
| Fir | 8.7 | 4.5 | 4.1 | 4.7 | 4.3 | 7.3 | 6.7 | 8.1 | 8.5 | 10.2 | 5.5 | 61.2 | |
| Pine | 4.3 | 3.5 | 4.2 | 3.9 | 4.1 | 5.2 | 5.7 | 8.4 | 11.8 | 15.8 | 11.7 | 70.2 | |
| Spruce | 4.7 | 2.9 | 2.2 | 1.9 | 1.9 | 1.7 | 1.8 | 2.9 | 6.3 | 9.2 | 6.0 | 32.3 | |
| Source: Canada's National Forest Inventory, combined remeasured (2007-2017) and projected (2006-2017 with NFI projection system) data (Version 2, November 2022) (http://nfi.nfis.org) | |||||||||||||
| Note: The Arctic ecozones (Arctic Cordillera, Northern Arctic, Southern Arctic), and the Taiga Plains and Hudson Plains ecozones located in Nunavut, are not inventoried. These non-inventoried areas total 262,189.89 thousand ha. | |||||||||||||
|
1 Missing or unknown age class. |
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