| Forest type | Age (years) | Total | ||||||||||||
| 1-20 | 21-40 | 41-60 | 61-80 | 81-100 | 101-120 | 121-140 | 141-160 | 161-180 | 181-200 | 201+ | Other1 | |||
| Non-treed | 26.42 | 31.98 | 37.41 | 32.84 | 22.36 | 23.41 | 47.82 | 58.07 | 99.86 | 99.59 | 100.00 | 2.76 | 5.50 | |
| Treed Broadleaf | 5.43 | 3.61 | 3.48 | 3.34 | 3.38 | 5.54 | 10.68 | 15.62 | 33.89 | 34.20 | 35.27 | - | 1.67 | |
| Treed Mixedwood | 4.46 | 3.12 | 2.93 | 2.71 | 2.96 | 4.16 | 5.04 | 9.19 | 16.40 | 30.54 | 23.69 | - | 1.33 | |
| Treed Coniferous | 4.00 | 2.57 | 2.58 | 2.21 | 1.97 | 1.88 | 1.98 | 2.87 | 5.05 | 5.85 | 3.35 | - | 0.88 | |
| Total | 2.62 | 1.78 | 1.74 | 1.56 | 1.48 | 1.64 | 1.84 | 2.71 | 4.83 | 5.66 | 3.32 | 2.76 | 0.70 | |
| Source: Canada's National Forest Inventory, combined remeasured (2007-2017) and projected (2006-2017 with NFI projection system) data (Version 3.1, October 2025) (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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