Each standard four
drawer vertical filing cabinet has 100 filing inches. Each 36" wide, 82 ¾"
high single faced shelving section (six adjustable shelves plus one base
shelf) has 252 filing inches. One double faced section of 36" wide, 82 ¾" high
shelving has 504 filing inches – the equivalent of 5 four drawer vertical
filing cabinets.
To compare the cost of shelving to filing cabinets, determine the cost per
filing inch of each. For example, if two sections of 36" wide double faced
shelving cost $1,407.00 then the cost per filing inch is $1.40
($1,407.00 divided by 1,008 filing inches = $1.40). If a four drawer vertical
filing cabinet of comparable quality costs $150.00 then 10 cost $1,500 and the
cost per filing inch is $1.50 ($1,500.00 divided by 1,000 filing inches
= $1.50).
Shelving saves space. Most vertical style filing cabinets are purchased
with four drawers (rather than five) because the shortest filing clerk has to
be able to reach up, over and down into the top drawer in order to use the top
drawer which often times cannot be accomplished using a five drawer vertical
filing cabinet. However, a clerk who can use 4 drawers of a vertical filing
cabinet can easily use six shelves of shelving and almost always seven.
Therefore shelving allows better use of "air space".

In addition, filing cabinets require the user to pull a drawer out in order
to use them. Consequently, the floor space dedicated to a filing
cabinet is not the footprint of the cabinet on the floor but the space taken
by the cabinet with a fully extended drawer – the dedicated floor space is
almost double its footprint. The dedicated floor space for shelving, on the
other hand, is only the footprint because shelves do not pull out. (The access
space for a person standing in front of a fully extended file drawer and the
access space for a person using shelving is the same.)

To compare the dedicated floor space for shelving with the dedicated floor
space for filing cabinets, consider the following example. A letter size four
drawer vertical filing cabinet takes up 26" x 16" of floor space. When 25 more
inches are added to accommodate a fully extended drawer, plus 24 more inches
for access in front of the drawer, 26" x 16" becomes 75" x 16" for each filing
cabinet. Therefore, a filing cabinet requires 8.33 sq. ft. of dedicated floor
space (75 x 16 = 1200 / 144 = 8.33) and ten filing cabinets would require
83.3 sq. ft. of dedicated floor space. Two double faced sections of
letter size shelving hold the equivalent of ten four drawer filing cabinets
but only require 27" x 74" of floor space. When 24" of access space are added
to each side of double faced shelving, then 27" x 74" becomes 75" x 74".
Therefore, a two section double faced range of shelving with access space on
both sides requires only 38.5 sq. ft. of floor space (75 x 74 =
5550 / 144 = 38.5) – less than half the space required for filing cabinets.
In summary, the use of shelving will effectively double the number of
filing inches available in a given square foot of floor space or conversely
the use of shelving requires approximately half the floor space of filing
cabinets because with shelving you do not need to dedicate floor space for a
fully extended file drawer and because you can go to higher levels with
shelving compared to filing cabinets.
Worker productivity is higher with shelving compared to filing cabinets.
Employees who use shelving can file, retrieve and re-file folders much
quicker with shelving because they can find the location of any folder faster
(filing cabinets hide folders and their indexing). In addition, employees do
not have the wasted motions of opening a drawer to retrieve a folder, pushing
the drawer back in after a folder is retrieved, then opening a drawer to
return a folder and closing the drawer after a folder is re-filed.
Shelving is safer than filing cabinets because there are no moving
parts. Closing file cabinet drawers can pinch fingers and it is possible for
an extended top drawer full of folders to make a filing cabinet tip and fall
if the other drawers are empty.
Color-coding file folders in shelving works better than color-coding file
folders in filing cabinets, which hide the folders. Misfiles cannot be as
easily spotted in filing cabinets as they can be in shelving.