Table 20 „ Per-acre volume of live sawtimber on commercial forest 

 land by stand-size class , North Idaho a 1951 



Stand-size class : Thousand acres . -Million , 



. board feet-/ 



l/ International l/4" rule, 



Board feet 

 ■ per 

 acre 



Sawtimber 3,535 58,143 16,448 



Pole 1,891 2,133 1,128 



Seedling-sapling 1.164 183 157 



Nonstocked 1,170 226 193 



Total 7,760 60,685 7,820 



Table 21 „ Per-acre volume of growing sto ck on commercial fores t land 

 by stand- and tree-size classe s, North Idaho, 1951 





^Thousand 





Trees 







Trees 





Stand-size class 



i acres 



t Saw™ 



! Pole ! 



I All 



1 Saw- ; 



Pole I 



All. 







% timber 



t timbers 







Million cubic 



feet 



Cubic 



feet per 



' acre 



Sawtimber 



3,535 



9,314 



1,249 



10,563 



2,635 



353 



2,988 



Pole 



Seedling-sapling 



1,891 

 1,164 



377 

 31 



2,043 . 

 147 



2,420 

 178 



199 

 27 



1,081 

 126 



1 9 280 

 153 



Nonstocked 



1,170 



40 



9 



49 



34 



8 



42 



Total 



7,760 



9,762 



3,448 



13,210 



1,258 



444 



1,702 



-26- 



