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The tables below show the approximate caliper (or thickness) for a single sheet of paper of various grades and basis weights. Caliper is expressed in thousandths of an inch (or in some cases, as much as hundred thousands of an inch). With these tables you can quickly look up the caliper for the following kinds of paper:

Paper Caliper

These tables are organized by grade, with the left column listing selected standard basis weights for that grade, and the right column listing the average caliper for a given grade/basis weight of paper.

For your convenience, this chart is available here as a free downloadable PDF »

Disclaimer:

The numerical data in these tables should be considered to be averages only and are not guaranteed by Case Paper Company as accurate in all situations.

 

 

see also… FORMS BOND | COATED BOOK | COVER | OFFSET | INDEX |
VELLUM BRISTOL COVER | LEDGER | TAG | POSTAL CARDS

Forms Bond Paper

STD. PAPER SIZE BASIS WEIGHT AVG. CALIPER
17″ × 22″ 10.0 .002
11.5 .0022
12.0 .0025
13.5 .00275
15.0 .003
16.0 .00325
18.0 .0035
20.0 .004
24.0 .0045
28.0 .0052
32.0 .006

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see also… FORMS BOND | COATED BOOK | COVER | OFFSET | INDEX |
VELLUM BRISTOL COVER | LEDGER | TAG | POSTAL CARDS

Coated Book Paper

Gloss

STD. PAPER SIZE BASIS WEIGHT AVG. CALIPER
25″ × 38″ 60 .0029
70 .0035
80 .0038
100 .0048

Dull

STD. PAPER SIZE BASIS WEIGHT AVG. CALIPER
25″ × 38″ 60 .00325
70 .0037
80 .00425
100 .0054

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see also… FORMS BOND | COATED BOOK | COVER | OFFSET | INDEX |
VELLUM BRISTOL COVER | LEDGER | TAG | POSTAL CARDS

Cover Paper

Uncoated

STD. PAPER SIZE BASIS WEIGHT AVG. CALIPER
20″ × 26″ 50 .0065
65 .0095
80 .0115

Gloss Coated

STD. PAPER SIZE BASIS WEIGHT AVG. CALIPER
20″ × 26″ 60 .0055
65 .006
80 .0075
100 .0095
120 .012

Dull Coated

STD. PAPER SIZE BASIS WEIGHT AVG. CALIPER
20″ × 26″ 80 .0085
100 .011

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see also… FORMS BOND | COATED BOOK | COVER | OFFSET | INDEX |
VELLUM BRISTOL COVER | LEDGER | TAG | POSTAL CARDS

Offset Paper

Regular Finish

STD. PAPER SIZE BASIS WEIGHT AVG. CALIPER
25″ × 38″ 50 .004
60 .0045
70 .005
80 .006
100 .007

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see also… FORMS BOND | COATED BOOK | COVER | OFFSET | INDEX |
VELLUM BRISTOL COVER | LEDGER | TAG | POSTAL CARDS

Index Paper

STD. PAPER SIZE BASIS WEIGHT AVG. CALIPER
25 ½″ × 30½″ 90 .007
110 .009
140 .011

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see also… FORMS BOND | COATED BOOK | COVER | OFFSET | INDEX |
VELLUM BRISTOL COVER | LEDGER | TAG | POSTAL CARDS

Vellum Bristol Cover Paper

STD. PAPER SIZE BASIS WEIGHT AVG. CALIPER
22 ½″ × 28½″ 57 .007
67 .009
80 .010

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see also… FORMS BOND | COATED BOOK | COVER | OFFSET | INDEX |
VELLUM BRISTOL COVER | LEDGER | TAG | POSTAL CARDS

Ledger Paper

STD. PAPER SIZE BASIS WEIGHT AVG. CALIPER
17″ × 22″ 24 .004
28 .005
32 .006
36 .007

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see also… FORMS BOND | COATED BOOK | COVER | OFFSET | INDEX |
VELLUM BRISTOL COVER | LEDGER | TAG | POSTAL CARDS

Tag Paper

STD. PAPER SIZE BASIS WEIGHT AVG. CALIPER
24″ × 36″ 100 .007
125 .009
150 .011
175 .013
200 .015

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see also… FORMS BOND | COATED BOOK | COVER | OFFSET | INDEX |
VELLUM BRISTOL COVER | LEDGER | TAG | POSTAL CARDS

Postal Cards

U.S. Postal Service Paper Stock Dimensions,
Shape, and Caliper Standards for Automation Letters

Each letter-size piece must be rectangular and:

  1. For HEIGHT, no more than 6.125 or less than 3.5 inches high.
  2. For LENGTH, no more than 11.5 or less than 5 inches long.
  3. For THICKNESS, no more than 0.25 inches, or less than…
    • 0.007 inch thick if no more than 4.25 inches high and 6 inches long; or
    • 0.009 inch thick if more than 4.25 inches high or 6 inches long, or both.

For further information on the specifications regarding paper stock and dimensions for mailings, please visit the U.S. Postal Service website at www.usps.com.

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See Also…

Equivalent Weights Chart

Adobe Acrobat PDFDownload this Paper Thickness Chart as a PDF

Thumbnail of Average Caliper Chart


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For customer service, please call 1.888.227.3178