41c 



HARDWOOD RECORD 



February 10, 1917 



II 12 13 14 IS 



TOP DIAMETER - INCHES 



2 3 13 14 10 



BASIS - NUMBER OT LOSS 



17 



4 



FIG. 1.— TIME TO SAW LOGS AND AVERAGE KATE OF PRODUCTION 



PER HOUR 



(Based on 40 logs cut to one inch stock and 10 logs cut to two inch stock. 



All logs had a 4"x6" boxed heart) 



head saw is, therefore, of prime importance. The cost for logs of 



different diameters is computed as follows: 



Let F = the cost of manufacturing 1,000 feet of lumber b. m. from 



logs of a specified diameter, then 



{ No. seconds to saw 1 X f cost of manufacture ) v innn 

 ' ■ - - -• J X ( per secoiul } ^ ■^""" 



' '^ j log specified diam . 



Lumber scale of same log. 



In this formula the cost of manufacture per second = 

 Total net lumber I x i Average cost of manufacturing 



tally of all lo gs ) ( M feet net lumber t ally 



Total number of seconds required to saw all logs. 



In figure 4, curve No. 7 was plotted by adding to curve No. 6 the 



10 



16 



17 



4 



n 12 13 14 15 



TOP DIAMETER - INCHES 

 I - 2 3 13 14 10 



BASIS - NUMBER OF LOSS 



FIG. 2. — AVBR.\GE YIELD PER LOG BY GRADES IN PER CENT OF 



AVERAGE NET LUMBER TALLY OF TOTAL YIELD FOR 50 LOGS 



(Dotted lines show points as actually determined from diita. Heavy lines 



show approximate averages) 



amounts computed in the manner described above, and represents the 

 total production costs, per M net lumber tally, f. o. b. cars, of green 

 material, exclusive of planing mill charges. The gain or loss is the 

 difference between these costs and the realization and is given in 

 Table 1. 



The costs as presented above were derived from the average costs 

 of the cooperator for the six months' period ending June 30, 1915, 

 during which period the mill sawed about equal portions of soft and 

 hardwood lumber. 



;Ier cact 

 Over- 

 ran 



98.0 

 61.2 

 50.6 

 43.2 

 37,0 

 33.2 

 27.6 

 24.6 



JBtte 

 per cent 



; P.B.Ii. : 



Produced: 



per 



hour 



Carry- : ; 



lag iStianp-: 



Chsrgee: age' : 



per U D07I0 Scale 

 : Logging 



PlzeS : Variable 



> 

 24.5 

 30.1 

 40.4 

 38,8 

 39.9 

 37.4 

 36.2 

 36.2 



16.60 

 7.91 

 6.06 

 4.79 

 3.88 

 3. CO 

 2.69 

 2.29 



: Doyle ; ; GatQ nd Lo.a 



: cost : : Total -Reallea-iper M Bet Iiia> 



:rodio-; Costa r:et : Coate :tlon*2 :ber Tally 

 ted to :Lu3bor Tally: Set :per u itahore 6)E la- 

 _:LumbeT .:UBt Lum-;tereet aad 61t 

 "" * ber !tiToflt"0 

 Toll J 



:luri)er: 



:tBny : Kfg. :t:e»'l 



Tally** 



tproflt* 



21.42: 10.71: 6.61: 6.26 



13.83: 

 11.98: 

 lO.Tl': 



9.eot 



9. is': 

 6.61: 



8.67: 4.67: 6.26 



: : 



7.99: 4.22) 6.26 



7.48! 3.91' 6. £6 



* : * 



£2.46 ': 10.61 



19.40 1 10.76 



: 

 16.47 : 11. 0« 



: 

 17.66 I 12.24 



7.C1: 3.661 6.86 1 17.16 : lS.n 



1 I . ; I 



6.90; 3.491 6.26 ; 16.66 : 16.00 



; 1 : I 



6.74: 3.331 6.26 : 16,83 t 16.79 



.21: 6.611 3.211 6.S6 ; 16.08 I 17.68 



- 11. »T 



- e.t4 



- 7.16 

 ■ 0.41 



- S.4S 



- 1.63 



• .4« 



• 1.60 



TABLE No. 1. — COSTS OF PRODUCTION AND REALIZATION 



• Waste per cent Includes "scoots" but does not Include waste due to extra inches over even 16 foot log. 

 •2 Healizatlon is based on the lumber graded In green condition. 

 •3 Profit Is based on capital employed In business exclusive of the tlm ber. 

 •4 All costs are based on figures furnished by the Goodman Lumber Company. 



