## Posts Tagged ‘Side Tab Filing’

An organized filing system can be arranged in a number of ways including: Alphabetical, Straight Numeric, or Terminal Digit order.

This article focuses on Terminal Digit filing.

With Terminal digit filing the last two digits of the filing number determine the primary location of the file. Then you go to the middle two digits, then the beginning digits (how many digits depends on the size of the number).

A simple way to describe how to file a six digit number in terminal digit order is: last two, middle two, first two.

For example: the number 13 76 20 would be filed in the (20) section, then in order by the (76), then in order by the (13).

You are basically taking the entire file room and dividing it up into 100 sections. The sections start at (00) and end at (99)

You look at the last two digits first (last two) which means the first section in the file room contain all the numbers that end in **(00)** and the last section contains all the numbers that end in **(99).**

**Terminal Digit File Room Illustration**

00 |
01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 |

10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 |

20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 |

30 | 31 | 32 | 33 | 34 | 35 | 36 | 37 | 38 | 39 |

40 | 41 | 42 | 43 | 44 | 45 | 46 | 47 | 48 | 49 |

50 | 51 | 52 | 53 | 54 | 55 | 56 | 57 | 58 | 59 |

60 | 61 | 62 | 63 | 64 | 65 | 66 | 67 | 68 | 69 |

70 | 71 | 72 | 73 | 74 | 75 | 76 | 77 | 78 | 79 |

80 | 81 | 82 | 83 | 84 | 85 | 86 | 87 | 88 | 89 |

90 | 91 | 92 | 93 | 94 | 95 | 96 | 97 | 98 | 99 |

These sections pretty much stay constant so knowing the last two digits of the filing number means knowing the section of the file room that contains that record (a number ending 50 will be in the middle of the file room etc.).

Now that the record is in the primary section the next digits to file by in that section are the (middle digits). Then you go to the next digits back (first two with a six digit number).