| 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 | 38.2 | 22.6 | 100.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 2.7 | |
| Unspecified hardwoods | 8.3 | 12.0 | 17.6 | 49.6 | 23.0 | 65.6 | 95.1 | 0.0 | 0.0 | 0.0 | 0.0 | 100.5 | |
| Other hardwoods | 21.9 | 13.8 | 11.8 | 10.4 | 13.5 | 22.4 | 37.7 | 44.3 | 64.0 | 94.4 | 53.3 | 72.7 | |
| Maple | 17.5 | 8.9 | 5.8 | 6.0 | 6.4 | 11.6 | 26.7 | 35.6 | 75.5 | 0.0 | 78.4 | 100.5 | |
| Birch | 7.2 | 5.3 | 5.1 | 4.8 | 5.3 | 10.6 | 14.4 | 28.0 | 37.8 | 54.9 | 62.7 | 62.5 | |
| Poplar | 5.9 | 3.8 | 4.0 | 3.5 | 3.6 | 5.9 | 8.9 | 14.5 | 29.2 | 31.3 | 33.4 | 74.7 | |
| Unspecified conifers | 6.8 | 7.5 | 17.4 | 31.8 | 28.4 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 60.4 | |
| Cedar & other conifers | 25.3 | 15.9 | 14.9 | 12.4 | 9.6 | 12.3 | 16.0 | 28.6 | 24.9 | 21.5 | 8.2 | 0.0 | |
| Larch | 17.4 | 6.5 | 6.0 | 5.8 | 7.8 | 8.6 | 9.8 | 15.1 | 24.3 | 35.9 | 26.2 | 62.7 | |
| Douglas-fir | 25.2 | 23.4 | 19.8 | 20.1 | 12.5 | 11.1 | 11.6 | 11.9 | 14.6 | 17.1 | 13.5 | 0.0 | |
| Hemlock | 21.4 | 16.0 | 15.7 | 19.6 | 17.0 | 16.6 | 14.6 | 21.3 | 16.1 | 23.6 | 6.0 | 0.0 | |
| Fir | 10.3 | 5.0 | 4.3 | 5.1 | 4.6 | 7.8 | 7.0 | 8.9 | 10.0 | 10.6 | 6.4 | 61.2 | |
| Pine | 6.4 | 4.0 | 4.8 | 4.4 | 4.6 | 5.4 | 6.0 | 8.7 | 12.9 | 16.3 | 12.5 | 70.2 | |
| Spruce | 6.6 | 3.4 | 2.8 | 2.2 | 2.1 | 2.0 | 2.1 | 3.1 | 6.5 | 9.1 | 5.9 | 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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