Caterpillar Performance Handbook, January 2017, SEBD0351-47

Tree Counts Comparison of Log Rules

Forest Products Tables

Board Foot Values for 16-Foot Logs

ESTIMATING NUMBER OFTREES PER HECTARE Spacing (Meters) Spacing (Meters) 1 2 3 4 5 6 7 8 1 10 000 5000 3333 2500 2000 1667 1428 1250 2 5000 2500 1667 1250 1000 834 714 625 3 3333 1667 1111 834 667 556 477 417 4 2500 1250 834 625 500 417 357 313 5 2000 1000 667 500 400 330 286 250 6 1667 834 556 417 333 278 238 208 7 1428 714 477 357 286 238 204 179 8 1250 625 417 313 250 208 179 156 ESTIMATING NUMBER OFTREES PER ACRE Spacing (Feet) Spacing (Feet) 5 6 7 8 9 10 11 12 5 1742 1452 1244 1089 968 871 792 726 6 1452 1210 1037 1 907 806 726 660 605 7 1244 1037 1 888 1 777 691 622 565 518 8 1089 1 907 1 777 1 680 605 544 495 453 9 1 968 1 806 1 691 1 605 537 484 440 403 10 1 871 1 726 1 622 1 544 484 435 396 363 11 1 792 1 660 1 565 1 495 440 396 360 330 12 1 726 1 605 1 518 1 453 403 363 330 302 13 1 671 1 558 1 478 1 418 372 335 304 279 14 1 622 1 518 1 444 1 390 346 311 283 259 15 1 580 1 484 1 415 1 363 323 290 264 242

COMPARISON OF LOG RULES ●

Diameter at Small End, Inside Bark, Inches

International 1/4 Inch

Scribner Decimal Spaulding Doyle

Scribner

5

10 18 32 54 79

10 20 30 60 80

— 0 — 0 — 0

— 0

4 6 8

20 40 65 95

4

16 36 64

50 77

10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40

135 180 230 290 355 425 500 585 675 770 875 980

114

110

114 100 161 144 216 196 276 256 341 324 412 400 488 484 569 576 656 676 748 784 845 900 950 1024

159 160 213 210 280 280 334 330 404 400 500 500 582 580 657 660 736 740 800 800 923 920

1095 1220

1068 1070 1064 1156 1204 1200 1185 1296

5-142 Edition 47