Let's end the confusion of Paper Weight & Size

In an effort to help eliminate the "Paper Weight" confusion problem,
we have compiled the comprehensive table listed below.
Now you can compare various types of paper and their "Equivalent Weights."


    Definitions:


  • Basis Weight
    The basis weight of a paper is the designated fixed weight of 500 sheets,
    measured in pounds, in that paper's basic sheet size.
    It is important to note that the "basic sheet size" is not the same
    for all types of paper.
  • Caliper
    Caliper refers to the thickness of a sheet of paper expressed
    in thousandth of an inch. This measurement is taken with a micro meter.
    Normally, paper caliper should not have more than a + or - 5% variance
    within a sheet. Generally, the relation between caliper and basis weight ....
    the greater the caliper (the thicker the paper), the greater the paper weight.
  • Equivalent Weight
    While different paper types have different basic sizes,
    papers can still be compared by using equivalent weight.

Basis Weight ("Category") Table

Type PaperBasic Size - 500 Sheets
"Bond"
Ledger
Mimeo
Duplicator
Rag Paper
17" x 22"
"Offset"
Book
Text
Coated Paper
25" x 38"
"Cover"20" x 26"
"Tag Stock"24" x 36"
"Index"25-1/2" x 30-1/2"
The Values in the table below are intended to serve as a guide only.
They should not be used as specifications because there are variances
within the same basis weight due to other characteristics of the papers.
Similar weight papers may vary between different paper manufacturers.

--
Bond
Ledger

-
Offset
Text

-
Cover
-

--
Tag
--

-
Index
-

-
Points
-

-
*Caliper
(inches)

--
millimeters
--

-
Metric
(grams/sq meter)

Equivalent
Weight
16402237333.2.00320.08160.2 gsm
18452441373.6.00360.09267.72 gsm
20502846423.8.00380.09775.2 gsm
24603356504.8.00480.1290.3 gsm
28703964585.8.00580.147105.35 gsm
29734062606.00600.152109.11 gsm
31814573666.1.00610.155116.63 gsm
32854574676.15.006150.156120 gsm
35904880746.2.00620.157131.68 gsm
36905082756.8.00680.173135.45 gsm
391005490817.2.00720.183146.73 gsm
401005693837.3.00730.185150.5 gsm
4311060100907.4.00740.188161.78 gsm
4411061102927.6.00760.193165.55 gsm
4712065108978.00780.198176.83 gsm
53135741221109.00850.216199.41 gsm
54137751251139.0090.229203.17 gsm
58146801341209.5.00920.234218.22 gsm
651659015013510.00950.241244.56 gsm
671709315614010.5.0100.25252.08 gsm
7218310016615011.0110.289270.9 gsm
7619210517515813.0130.33285.95 gsm
8220811418917014.0140.356308.52 gsm
8722012020018015.0150.38312 gsm
10526714624422018.01750.445385.06 gsm
  • The darker colored boxes above represent the
    "most common paper weights" for that category.
  • Normal paper manufacturing tolerance within a
    paper production run is + or - 5% to 7% caliper
  • This Table was compiled by Micro Format, Inc.
  • © 1997-2013 Micro Format, Inc.This table may be duplicated with permission from Micro Format, Inc.

  • Don´t hesitate to hire professional printing services to handle important printing jobs that are outside your comfort level.


    International Metric Paper Sizes - ISO Standard
    SIZE
    WIDTH (mm)
    HEIGHT (mm)
    WIDTH (in.)
    HEIGHT(in.)
    A0841 mm1,189 mm33.11 in.46.81 in.
    A1594 mm841 mm23.39 in.33.11 in.
    A2420 mm594 mm16.54 in.23.39 in.
    A3297 mm420 mm11.69 in.16.54 in.
    A4210 mm297 mm8.27 in.11.69 in.
    A5148 mm210 mm5.83 in.8.27 in.
    A6105 mm148 mm4.13 in.5.83 in.
    A774 mm105 mm2.91 in.4.13 in.
    B01,028 mm1,456 mm40.48 in.57.32 in.
    B1707 mm1,000 mm28.66 in.40.48 in.
    B2514 mm728 mm20.24 in.28.66
    B3364 mm514 mm14.33 in.20.24 in.
    B4257 mm364 mm10.12 in.14.33 in.
    B5182 mm257 mm7.17 in.10.12 in.
    B6128 mm182 mm5.04 in.7.17 in.

    8.5in. x 11in. = 215.9mm x 279.4mm
    11in. x 17in. = 279.4mm x 431.8mm
    12in. x 18in. = 304.8mm x 457.2mm


    HELPFUL GUIDELINES for PAPER USAGE
    • Prior to use, paper should be allowed to acclimate at least
      48 Hours in the environment in which it will be used.
      Optimum storage facility would retain temperatures between 70-80 degrees F
      with 50% relative humidity.
    • Before loading paper, fan the sheets on all four sides.
      This creates a small layer of air between the sheets which should help
      printer feeding mechanisms.
    • Do Not Stack Materials such as Designer Gold, Designer Silver,
      Super Color Gloss, Super Color Photo, Super Color Photo Cards,
      Super Color Shrink. Feed into printer one sheet at a time.
    • Load Materials according to the instructions in the
      printer owner's manual.
      Recommended feeding is generally to use the manual feed tray, or the straightest path through the printer.
    • Upon Completion, the unused material should be stored in a
      closed package, re-sealed and stored flat.
    • When disposing of important documents, Ironmountain.ca paper shredding
      can ensure proper destruction of sensitive information.


    Glossary of Paper Terms
  • Acid Free Paper
    Paper manufactured to a neutral pH reading (7).
    Used for fine art prints, limited edition printing, scrapbooking
  • Antique Finish
    Random surface quality created by "felts" in the manufacturing process
  • Brightness
    Light reflecting property of paper when measured under a specially calibrated blue light.
  • Basis Weight
    The weight of one ream of paper (500 sheets) when cut to the industry standard for that specific grade of paper.
  • Bristols
    Solid or laminated heavy-weight printing paper made to a thickness of .006" or higher. Bristols are often used for printed items that require repeated handling.
  • Bulk
    The thickness of paper when compared to its weight. A high bulk paper is thicker but less compact than a low-bulk paper of the same weight and size.
  • Calendering
    Part of the paper manufacturing process where the paper "web" passes between polished metal rolls. This increases the paper's smoothness and provides a uniform thickness (caliper).

  • Thermal Paper ~ Shelf Life - Storage
    Thermal Paper Information as supplied to us by Appleton Papers.

    Educational Material

    This fascinating site reveals the traditional methods of making various types of prints. We think you'll find this information interesting.
    Visit this site. What's A Print?

    Additional Definitions of Standard Paper Terminology and Abbreviations

    Bond 
    Uncoated "plain" paper - free from impurities.
    Also referred to as "free sheet." 
    Recycled Paper manufactured from the waste paper stream.
    All Micro Format recycled products contain a minimum of
    100% recycled material including 40% post consumer waste 
    Waste Paper Stream Waste paper created during the paper manufacturing process 
    Post Consumer Waste Processed Paper that has been re-used in manufacturing new paper products  
    Carbonless Paper coated with special encapsulated chemicals that produce
    a duplicate copy without the use of carbon paper 
    Thermal A paper coated with special chemicals that produce
    an image when heat is applied 
    Groundwood A low cost paper that contains unprocessed wood fibers. 
    Symbol "#" "pound" - used to describe paper weight
    Click for additional information on PAPER WEIGHT  
    Symbol "M" Meter - 1 meter=39.37 inches 
    Symbol "mm" Millimeter - 1 inch=25.4 millimeters 
    Symbol "sc" Self Contained Paper
    paper that can be imaged in a printer without the use of a ribbon  
    Symbol "cb"  Coated Back - Carbonless Paper (part 1) 
    Symbol "cfb"  Coated Front and Back - Carbonless Paper
    internal part in a multipul part form 
    Symbol "cf" Coated Front - Carbonless Paper (last part in set) 
    Symbol "sccb" Self Contained sheet with carbonless coating on back
    normally used as part one in a multi part set in an impact printer
    using no ribbon 
    Symbol "sccb/cf" Carbonless set - Self Contained Coated Back Sheet Part 1
    Coated Front Sheet Part 2 
    Symbol "w" Paper Color - White 
    Symbol "c" Paper Color - Canary 
    Symbol "p" Paper Color - Pink 
    Symbol "g" Paper Color - Green 
    Symbol "b" Paper Color - Blue 

    ADDITIONAL CONVERSION TABLES

    How to Convert to Metric

    Length and Distance
    When you knowMultiply byTo Find
    inches2.54centimeters
    feet30.480centimeters
    miles1.609kilometers
    centimeters0.394inches
    meters1.094yards
    kilometers0.621miles
    Weight
    When you knowMultiply byTo Find
    pounds0.454kilograms
    tons0.907metric tons
    kilograms2.205pounds
    metric tons1.202tons
     

    Decimal Equivalents

    1/64=0.015625
    1/16=0.0625
    1/8=0.125
    3/16=0.1875
    1/4=0.25
    5/16=0.3125
    3/8=0.375
    7/16=0.4375
    1/2=0.5
    9/16=0.5625
    5/8=0.625
    11/16=0.6875
    3/4=0.75
    13/16=0.8125
    7/8=0.875
    15/16=0.9375
    1=1.0
    Temperature
    When you knowDo ThisTo Find
    degrees
    Fahrenheit
    Subtract 32
    multiply by 5/9
    degrees
    Celsius
    degrees
    Celsius
    Multiply by 9/5
    then add 32
    degrees
    Fahrenheit
     
    Surface or Area
    When you knowMultiply byTo Find
    square feet0.093square meters
    square miles2.590square kilometers
    square centimeters0.155square inches
    square kilometers0.386square miles

    All information courtesy of www.paper-paper.com/weight.html

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