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Appendix III
Table
1. Excerpted sections from the International,
Doyle, and Scribner Decimal C board foot log rules.
Scaling diameter
(inches)
|
Log length in feet
|
|
|
|
|
|
|
|
6
|
8
|
10
|
12
|
14
|
16
|
|
|
|
International 1/4 inch log scale, contents of logs
in board feet
|
|
|
|
|
|
|
|
|
|
6
|
5
|
10
|
10
|
15
|
15
|
20
|
|
7
|
10
|
10
|
15
|
20
|
25
|
30
|
|
8
|
10
|
15
|
20
|
25
|
35
|
40
|
|
9
|
15
|
20
|
30
|
35
|
45
|
50
|
|
10
|
20
|
30
|
35
|
45
|
55
|
65
|
|
11
|
25
|
35
|
45
|
55
|
70
|
80
|
|
12
|
30
|
45
|
55
|
70
|
85
|
95
|
|
13
|
40
|
55
|
70
|
85
|
100
|
115
|
|
14
|
45
|
65
|
80
|
100
|
115
|
135
|
|
15
|
55
|
75
|
95
|
115
|
135
|
160
|
|
16
|
60
|
85
|
110
|
130
|
155
|
180
|
|
17
|
70
|
95
|
125
|
150
|
180
|
205
|
|
18
|
80
|
110
|
140
|
170
|
200
|
230
|
|
19
|
90
|
125
|
155
|
190
|
225
|
260
|
|
20
|
100
|
135
|
175
|
210
|
250
|
290
|
|
21
|
115
|
155
|
195
|
235
|
280
|
320
|
|
22
|
125
|
170
|
215
|
260
|
305
|
355
|
|
23
|
140
|
185
|
235
|
285
|
335
|
390
|
|
24
|
150
|
205
|
255
|
310
|
370
|
425
|
|
25
|
165
|
220
|
280
|
340
|
400
|
460
|
|
26
|
180
|
240
|
305
|
370
|
435
|
500
|
|
27
|
195
|
260
|
330
|
400
|
470
|
540
|
|
28
|
210
|
280
|
355
|
430
|
510
|
585
|
|
29
|
225
|
305
|
385
|
465
|
545
|
630
|
|
30
|
245
|
325
|
410
|
495
|
585
|
675
|
|
|
|
|
|
|
|
|
|
|
Doyle
log scale, contents of logs in board feet
|
|
|
|
|
|
|
|
|
|
6
|
2
|
2
|
3
|
3
|
4
|
4
|
|
7
|
3
|
5
|
6
|
7
|
8
|
9
|
|
8
|
6
|
8
|
10
|
12
|
14
|
16
|
|
9
|
9
|
13
|
16
|
19
|
22
|
25
|
|
10
|
14
|
18
|
23
|
27
|
32
|
36
|
|
11
|
18
|
25
|
31
|
37
|
43
|
49
|
|
12
|
24
|
32
|
40
|
48
|
56
|
64
|
|
13
|
30
|
41
|
51
|
61
|
71
|
81
|
|
14
|
38
|
50
|
63
|
75
|
88
|
100
|
|
15
|
45
|
61
|
76
|
91
|
106
|
121
|
|
16
|
54
|
72
|
90
|
108
|
126
|
144
|
|
17
|
63
|
85
|
106
|
127
|
148
|
169
|
|
18
|
74
|
98
|
123
|
147
|
172
|
196
|
|
19
|
84
|
113
|
141
|
169
|
197
|
225
|
|
20
|
96
|
128
|
160
|
192
|
224
|
256
|
|
21
|
108
|
145
|
181
|
217
|
253
|
289
|
|
22
|
122
|
162
|
203
|
243
|
284
|
324
|
|
23
|
135
|
181
|
226
|
271
|
316
|
361
|
|
24
|
150
|
200
|
250
|
300
|
350
|
400
|
|
25
|
165
|
221
|
276
|
331
|
386
|
441
|
|
26
|
182
|
242
|
303
|
363
|
424
|
484
|
|
27
|
198
|
265
|
331
|
397
|
463
|
529
|
|
28
|
216
|
288
|
360
|
432
|
504
|
576
|
|
29
|
234
|
313
|
391
|
469
|
547
|
625
|
|
30
|
254
|
338
|
423
|
507
|
592
|
676
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Scaling
diameter
(inches)
|
Log length in feet
|
|
|
|
|
|
6
|
8
|
10
|
12
|
14
|
16
|
|
|
|
Scribner
Decimal C log scale, contents of logs in board feet
|
|
|
|
|
|
|
|
|
|
6
|
5
|
5
|
10
|
10
|
10
|
20
|
|
7
|
5
|
10
|
10
|
20
|
20
|
30
|
|
8
|
10
|
10
|
20
|
20
|
20
|
30
|
|
9
|
10
|
20
|
30
|
30
|
30
|
40
|
|
10
|
20
|
30
|
30
|
30
|
40
|
60
|
|
11
|
20
|
30
|
40
|
40
|
50
|
70
|
|
12
|
30
|
40
|
50
|
60
|
70
|
80
|
|
13
|
40
|
50
|
60
|
70
|
80
|
100
|
|
14
|
40
|
60
|
70
|
90
|
100
|
110
|
|
15
|
50
|
70
|
90
|
110
|
120
|
140
|
|
16
|
60
|
80
|
100
|
120
|
140
|
160
|
|
17
|
70
|
90
|
120
|
140
|
160
|
180
|
|
18
|
80
|
110
|
130
|
160
|
190
|
210
|
|
19
|
90
|
120
|
150
|
180
|
210
|
240
|
|
20
|
110
|
140
|
170
|
210
|
240
|
280
|
|
21
|
120
|
150
|
190
|
230
|
270
|
300
|
|
22
|
130
|
170
|
210
|
250
|
290
|
330
|
|
23
|
140
|
190
|
230
|
280
|
330
|
380
|
|
24
|
150
|
210
|
250
|
300
|
350
|
400
|
|
25
|
170
|
230
|
290
|
340
|
400
|
460
|
|
26
|
190
|
250
|
310
|
370
|
440
|
500
|
|
27
|
210
|
270
|
340
|
410
|
480
|
550
|
|
28
|
220
|
290
|
360
|
440
|
510
|
580
|
|
29
|
230
|
310
|
380
|
460
|
530
|
610
|
|
30
|
250
|
330
|
410
|
490
|
570
|
660
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Source:
Koch (1972).
|
|
|
|
|
|
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Last Updated 10/13/2022 11:34:04 AM
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