| 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 | 29.95 | 43.42 | 42.34 | 34.27 | 22.36 | 23.42 | 48.17 | 51.55 | 99.74 | 89.18 | 100.00 | 0.00 | 13.34 | |
| Treed Broadleaf | 5.12 | 3.58 | 3.52 | 3.43 | 3.38 | 5.67 | 11.30 | 16.46 | 36.53 | 34.35 | 35.83 | - | 1.70 | |
| Treed Mixedwood | 4.30 | 3.12 | 2.96 | 2.78 | 3.02 | 4.25 | 5.43 | 9.24 | 16.98 | 33.00 | 22.98 | - | 1.37 | |
| Treed Coniferous | 4.09 | 2.55 | 2.55 | 2.27 | 2.02 | 1.88 | 2.02 | 3.21 | 5.35 | 5.92 | 3.47 | - | 0.93 | |
| Total | 2.58 | 1.77 | 1.74 | 1.60 | 1.51 | 1.65 | 1.89 | 2.99 | 5.12 | 5.76 | 3.45 | 0.00 | 0.74 | |
| 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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