PAPER THICKNESS (CALIPER) TABLES

Caliper is expressed in thousandths or hundred thousandths of an inch. In the paper industry, paper thickness is also expressed in points (a single point is .001″). To convert decimal-inch values into points, divide the average caliper by .001. For example, a sheet of paper that is .0095″ thick has a caliper of 9.5 points.

FORM

FORMS BOND

STANDARD SIZE: 17″ × 12″
BASIC WEIGHT
AVERAGE CALIPER
10 0.002
11.5 0.0022
12 0.0025
13.5 0.00275
15 0.003
16 0.00325
18 0.0035
20 0.004
24 0.0045
28 0.0052
32 0.006

 

BOOK

COATED BOOK GLOSS STD.

PAPER SIZE 25″ × 38″

 

BASIS WEIGHT
AVERAGE CALIPER
60 0.0029
70 0.0035
80 0.0038
100 0.0048

COATED BOOK DULL STD.

PAPER SIZE 25″ × 38″

 

BASIS WEIGHT
AVERAGE CALIPER
60 0.00325
70 0.0037
80 0.00425
100 0.0054

COVER

COVER PAPER UNCOATED STD.

PAPER SIZE 20″ × 26″

 

BASIS WEIGHT
AVERAGE CALIPER
50 0.0065
65 0.0095
80 0.0115

COVER PAPER GLOSS COATED STD.

PAPER SIZE 20″ × 26″

 

BASIS WEIGHT
AVERAGE. CALIPER
60 0.0055
65 0.006
80 0.0075
100 0.0095
120 0.012

COVER PAPER DULL COATED STD.

PAPER SIZE 20″ × 26″

 

BASIS WEIGHT
AVERAGE CALIPER
80 0.0085
100 0.011

VELLUM

VELLUM BRISTOL COVER PAPER

STD. PAPER SIZE 22 ½″ × 28½″

 

BASIS WEIGHT
AVERAGE CALIPER
57 0.007
67 0.009
80 0.01

INDEX

INDEX PAPER STD.

PAPER SIZE 25 ½″ × 30½″

 

BASIS WEIGHT
AVERAGE CALIPER
90 0.007
110 0.009
140 0.011

 

OFFSET

OFFSET PAPER, REGULAR FINISH STD.

PAPER SIZE 25″ × 38″

 

BASIS WEIGHT
AVERAGE CALIPER
50 0.004
60 0.0045
70 0.005
80 0.006
100 0.007

 

TAG

TAG PAPER STD.

PAPER SIZE 24″ × 36″

 

BASIS WEIGHT
AVERAGE CALIPER
100 0.007
125 0.009
150 0.011
175 0.013
200 0.015

 

LEDGER

LEDGER PAPER STD.

PAPER SIZE 17″ × 22″

 

BASIS WEIGHT
AVERAGE CALIPER
24 0.004
28 0.005
32 0.006
36 0.007

 

 

USPS PAPER SHAPE, DIMENSIONS, AND CALIPER STANDARDS

To be eligible for card pricing, a card may be a single or double (reply) stamped card or a single or double postcard. Each card—and part of a double card claimed at card pricing—must be:
• Rectangular
• Not less than 3½ inches high, 5 inches long, and 0.007 inch thick
• Not more than 4¼ inches high, or more than 6 inches long, or greater than 0.016 inch thick

For further specifications for mailings, visit www.usps.com.
















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