Caribou Software

Giving you the Edge in Business

  Canada: 780-448-2780 ext 1  US: 850-532-6206 ext 1

  sales@caribousoftware.com Media:  


Log Scaling On Android Allegro 3

Ontario FBM Log Rule

The Ontario FBM Log Rule is forumla Based Rule

The formula is BF = (0.55*(D2) - 1.2D ) * L / 12

The Table below is based on the above equation, where the values are rounded used bankers rounding

Len/Diam 6" 7" 8" 9" 10" 11" 12" 13" 14" 15"
6' 6 9 13 17 22 27 32 39 46 53
7' 7 11 15 20 25 31 38 45 53 62
8' 8 12 17 22 29 36 43 52 61 70
9' 9 14 19 25 32 40 49 58 68 79
10' 10 15 21 28 36 44 54 64 76 88
11' 12 17 23 31 39 49 59 71 83 97
12' 13 19 26 34 43 53 65 77 91 106
13' 14 20 28 37 47 58 70 84 99 115
14' 15 22 30 39 50 62 76 90 106 123
15' 16 23 32 42 54 67 81 97 114 132
16' 17 25 34 45 57 71 86 103 121 141
17' 18 26 36 48 61 76 92 110 129 150
18' 19 28 38 51 64 80 97 116 136 159
19' 20 29 41 53 68 84 103 122 144 167
20' 21 31 43 56 72 89 108 129 152 176
21' 22 32 45 59 75 93 113 135 159 185
22' 23 34 47 62 79 98 119 142 167 194
23' 24 36 49 65 82 102 124 148 174 203
24' 25 37 51 68 86 107 130 155 182 212
25' 26 39 53 70 90 111 135 161 190 220
26' 27 40 55 73 93 116 140 168 197 229
27' 28 42 58 76 97 120 146 174 205 238
28' 29 43 60 79 100 124 151 180 212 247
29' 30 45 62 82 104 129 157 187 220 256
30' 32 46 64 84 108 133 162 193 228 264

Len/Diam 16" 17" 18" 19" 20" 21" 22" 23" 24" 25"
6' 61 69 78 88 98 109 120 132 144 157
7' 71 81 91 103 114 127 140 154 168 183
8' 81 92 104 117 131 145 160 176 192 209
9' 91 104 117 132 147 163 180 198 216 235
10' 101 115 130 146 163 181 200 219 240 261
11' 111 127 144 161 180 199 220 241 264 288
12' 122 139 157 176 196 217 240 263 288 314
13' 132 150 170 190 212 235 260 285 312 340
14' 142 162 183 205 229 254 280 307 336 366
15' 152 173 196 220 245 272 300 329 360 392
16' 162 185 209 234 261 290 320 351 384 418
17' 172 196 222 249 278 308 340 373 408 444
18' 182 208 235 264 294 326 360 395 432 471
19' 193 219 248 278 310 344 380 417 456 497
20' 203 231 261 293 327 362 400 439 480 523
21' 213 242 274 308 343 380 420 461 504 549
22' 223 254 287 322 359 398 440 483 528 575
23' 233 266 300 337 376 417 460 505 552 601
24' 243 277 313 352 392 435 480 527 576 628
25' 253 289 326 366 408 453 500 549 600 654
26' 263 300 339 381 425 471 520 571 624 680
27' 274 312 352 395 441 489 540 593 648 706
28' 284 323 365 410 457 507 560 614 672 732
29' 294 335 378 425 474 525 580 636 696 758
30' 304 346 392 439 490 543 600 658 720 784

Len/Diam 26" 27" 28" 29" 30" 31" 32" 33" 34" 35"
6' 170 184 199 214 230 246 262 280 298 316
7' 199 215 232 250 268 287 306 326 347 369
8' 227 246 265 285 306 328 350 373 397 421
9' 255 276 298 321 344 369 394 420 446 474
10' 284 307 331 356 382 409 437 466 496 526
11' 312 338 364 392 421 450 481 513 545 579
12' 341 369 398 428 459 491 525 559 595 632
13' 369 399 431 463 497 532 569 606 645 684
14' 397 430 464 499 536 573 612 653 694 737
15' 426 461 497 535 574 614 656 699 744 790
16' 454 491 530 570 612 655 700 746 793 842
17' 483 522 563 606 650 696 743 792 843 895
18' 511 553 596 642 688 737 787 839 892 948
19' 539 584 630 677 727 778 831 886 942 1000
20' 568 614 663 713 765 819 875 932 992 1053
21' 596 645 696 749 803 860 918 979 1041 1106
22' 624 676 729 784 842 901 962 1025 1091 1158
23' 653 706 762 820 880 942 1006 1072 1140 1211
24' 681 737 795 856 918 983 1050 1119 1190 1264
25' 710 768 828 891 956 1024 1093 1165 1240 1316
26' 738 799 861 927 994 1065 1137 1212 1289 1369
27' 766 829 895 962 1033 1106 1181 1259 1339 1421
28' 795 860 928 998 1071 1146 1225 1305 1388 1474
29' 823 891 961 1034 1109 1187 1268 1352 1438 1527
30' 852 921 994 1069 1148 1228 1312 1398 1488 1579

Len/Diam 36" 37" 38" 39" 40" 41" 42"
6' 335 354 374 395 416 438 460
7' 391 413 437 461 485 511 537
8' 446 472 499 526 555 584 613
9' 502 531 561 592 624 657 690
10' 558 590 624 658 693 729 766
11' 614 650 686 724 763 802 843
12' 670 709 749 790 832 875 920
13' 725 768 811 856 901 948 996
14' 781 827 873 921 971 1021 1073
15' 837 886 936 987 1040 1094 1150
16' 893 945 998 1053 1109 1167 1226
17' 949 1004 1061 1119 1179 1240 1303
18' 1004 1063 1123 1185 1248 1313 1380
19' 1060 1122 1185 1250 1317 1386 1456
20' 1116 1181 1248 1316 1387 1459 1533
21' 1172 1240 1310 1382 1456 1532 1610
22' 1228 1299 1372 1448 1525 1605 1686
23' 1283 1358 1435 1514 1595 1678 1763
24' 1339 1417 1497 1580 1664 1751 1840
25' 1395 1476 1560 1645 1733 1824 1916
26' 1451 1535 1622 1711 1803 1897 1993
27' 1507 1594 1684 1777 1872 1970 2070
28' 1562 1653 1747 1843 1941 2042 2146
29' 1618 1712 1809 1909 2011 2115 2223
30' 1674 1771 1872 1974 2080 2188 2300



Replace those old Clunky Systems and get with the Jetsons. What's not to like?

Call us at 850-532-6206 to schedule a demo or for more information!




TeamViewer Support | TeamViewer Demo | TeamViewer-Mac | TeamViewer-Demo-Mac

Caribou Software Media Links



GMail Integration Privacy Policy

© Copyright Caribou Software. All rights reserved. Website by www.brightbird.ca