6.8 King’s 50-year Site Index Tables
| King’s 50-year site index values for Douglas-fir. From King 1966. | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Site Index (ft.) | ||||||||||||
| Age (yrs.) | 50 | 60 | 70 | 80 | 90 | 100 | 110 | 120 | 130 | 140 | 150 | 160 |
| 5 | 8.8 | 9.6 | 10.4 | 11.3 | 12.1 | 13.1 | 14 | 15 | 16.1 | 17.2 | 18.4 | 19.6 |
| 10 | 13.6 | 15.7 | 17.8 | 20 | 22.3 | 24.5 | 26.8 | 29.2 | 31.6 | 34.1 | 36.6 | 39.1 |
| 15 | 19.8 | 23.2 | 26.7 | 30.2 | 33.7 | 37.3 | 40.8 | 44.5 | 48.1 | 51.8 | 55.5 | 59.2 |
| 20 | 25.6 | 30.3 | 35 | 39.7 | 44.4 | 49.1 | 53.9 | 58.6 | 63.4 | 68.2 | 73 | 77.9 |
| 25 | 30.9 | 36.7 | 42.5 | 48.3 | 54.1 | 59.9 | 65.7 | 71.6 | 77.3 | 83.2 | 89.1 | 94.8 |
| 30 | 35.6 | 42.4 | 49.3 | 56.1 | 62.9 | 69.7 | 76.4 | 83.2 | 90 | 96.8 | 103.5 | 110.3 |
| 35 | 39.8 | 47.6 | 55.3 | 63 | 70.7 | 78.4 | 86.1 | 93.8 | 101.5 | 109.1 | 116.8 | 124.4 |
| 40 | 43.6 | 52.2 | 60.7 | 69.3 | 77.8 | 86.3 | 94.8 | 103.3 | 111.9 | 120.4 | 128.8 | 137.3 |
| 45 | 47 | 56.3 | 65.6 | 74.9 | 84.2 | 93.5 | 102.8 | 112 | 121.3 | 130.6 | 139.9 | 149 |
| 50 | 50 | 60 | 70 | 80 | 90 | 100 | 110 | 120 | 130 | 140 | 150 | 160 |
| 55 | 52.7 | 63.3 | 74 | 84.6 | 95.3 | 105.9 | 116.5 | 127.2 | 137.9 | 148.6 | 159.3 | 170 |
| 60 | 55.2 | 66.4 | 77.6 | 88.8 | 100.1 | 111.3 | 122.6 | 133.9 | 145.2 | 156.5 | 167.9 | 179.2 |
| 65 | 57.4 | 69.2 | 80.9 | 92.7 | 104.5 | 116.3 | 128.1 | 140 | 151.9 | 163.9 | 175.8 | 187.8 |
| 70 | 59.5 | 71.7 | 83.9 | 96.2 | 108.5 | 120.9 | 133.2 | 145.7 | 158.2 | 170.7 | 183.3 | 195.8 |
| 75 | 61.4 | 74 | 86.7 | 99.5 | 112.3 | 125.1 | 138 | 150.9 | 163.9 | 177 | 190.1 | 203.2 |
| 80 | 63.1 | 76.2 | 89.3 | 102.5 | 115.7 | 129 | 142.4 | 155.8 | 169.3 | 182.9 | 196.5 | 210.2 |
| 85 | 64.7 | 78.1 | 91.7 | 105.3 | 118.9 | 132.6 | 146.4 | 160.3 | 174.3 | 188.4 | 202.6 | 216.2 |
| 90 | 66.2 | 80 | 93.9 | 107.8 | 121.9 | 136 | 150.2 | 164.5 | 179 | 193.5 | 208.2 | 222.8 |
| 95 | 67.5 | 81.7 | 95.9 | 110.2 | 124.7 | 139.2 | 153.8 | 168.5 | 183.4 | 198.4 | 213.5 | 228.6 |
| 100 | 68.6 | 83.2 | 97.8 | 112.5 | 127.2 | 142.1 | 157.1 | 172.2 | 187.5 | 202.9 | 218.4 | 234 |
| 105 | 70 | 84.7 | 99.6 | 114.6 | 129.7 | 144.9 | 160.2 | 175.7 | 191.4 | 207.2 | 223.1 | 239.1 |
| 110 | 71.1 | 86.1 | 101.2 | 116.5 | 131.9 | 147.5 | 163.2 | 179 | 195.1 | 211.2 | 227.5 | 243.9 |
| 115 | 72.1 | 87.4 | 102.8 | 118.4 | 134.1 | 149.9 | 165.9 | 182.1 | 198.5 | 215 | 231.7 | 248.4 |
| 120 | 73.1 | 88.6 | 104.3 | 120.1 | 136.1 | 152.2 | 168.5 | 185 | 201.7 | 218.6 | 235.6 | 252.7 |