Paper Thickness

Approximate Average Caliper Thickness Chart

Bond / Writing / Ledger
Uncoated Offset Book
Coated Offset Book
Coated Cover
Antique Cover
Index
Tag
Board

 

Bond

(Writing, Ledger, Duplicator, Rag Paper)

US Basis Weight Size 17" x 22"
US
pounds
(500 sheets)		 Metric
grams/sq meter
(500 sheets)		 Caliper
20 74 .004
24 89 .0045
28 104 .005
32 118 .006

 

Uncoated Offset Book

US Basis Wieight Size 25" x 38"
Style US
pounds
(500 sheets)		 Metric
grams/sq meter
(500 sheets)		 Caliper
Regular Finish 50 74 .004
60 89 .0045
70 104 .005
80 118 .006
100 148 .0075
Vellum Finish 50 74 .0042
60 89 .0052
70 104 .0060
80 118 .0068

 

Coated Offset Book

US Basis Weight Size 25" x 38"
Style US
pounds
(500 sheets)		 Metric
grams/sq meter
(500 sheets)		 Caliper
Gloss 60 89 .003
70 104 .0035
80 118 .004
100 148 .0055
Dull 60 89 .00315
70 104 .00355
80 118 .00400
100 148 .00530

 

Coated Cover

US Basis Weight Size 20" x 26"
US
pounds
(500 sheets)		 Metric
grams/sq meter
(500 sheets)		 Caliper Point
65 176 .0065 6.5
80 216 .0075 7.5
100 270 .0095 9.5

 

Antique Cover

US Basis Weight Size 20" x 26"
US
pounds
(500 sheets)		 Caliper Point
50 .0075 7.5
65 .0100 10
90 .014 14

 

Index

US Basis Weight Size 25 1/2" x 30 1/2"
US
pounds
(500 sheets)		 Metric
grams/sq meter
(500 sheets)		 Caliper Point
90 163 .007 7
110 199 .0085 8.5
140 253 .011 11

 

Tag

US Basis Weight Size 24" x 36"
US
pounds
(500 sheets)		 Metric
grams/sq meter
(500 sheets)		 Thickness Point
100 163 .007 7
125 203 .009 9
150 244 .011 11
175 285 .013 13
200 326 .015 15

 

Board

US Basis Weight Size 22" x 28"
Ply Thickness Point
3 .015 15
5 .018 18
5 .021 21
6 .024 24
8 .030 30
10 .036 36