What size of Comb Binds do I need?

To pick the correct size comb binds (aka combbind), follow this plastic comb binding size chart or call us at 1-866-455-9900.

19-Ring Plastic Binding Combs

All 19-ring comb binding supplies are sized to fit standard letter size projects (8 1/2" x 11"). Browse them below and contact us for more information on our binding combs sizes at 1-866-455-9900 today!

Print Plastic Comb Bind Size Guide

COMB SIZE Diameter in inches / millimeters	MAXIMUM NUMBER OF PAGES Sheets of 20# Paper	PROJECT THICKNESS Total thickness of all pages being bound	Shop View combs:
1/4" (6mm) Comb Binding Supplies	25	3/16"	View 1/4" Combs
5/16" (8mm) Comb Binding Supplies	40	1/4"	View 5/16" Combs
3/8" (10mm) Comb Binding Supplies	55	5/16"	View 3/8" Combs
7/16" (11mm) Comb Binding Supplies	70	3/8"	View 7/16" Combs
1/2" (12mm) Comb Binding Supplies	80	7/16"	View 1/2" Combs
9/16" (14mm) Comb Binding Supplies	105	1/2"	View 9/16" Combs
5/8" (16mm) Comb Binding Supplies	125	9/16"	View 5/8" Combs
3/4" (20mm) Comb Binding Supplies	150	5/8"	View 3/4" Combs
7/8" (22mm) Comb Binding Supplies	175	3/4"	View 7/8" Combs
1" (25mm) Comb Binding Supplies	200	7/8"	View 1" Combs
1-1/8" (28mm) Comb Binding Supplies	225	1"	View 1-1/8" Combs
1-1/4" (32mm) Comb Binding Supplies	265	1-1/8"	View 1-1/4" Combs
1-1/2" (38mm) Comb Binding Supplies	320	1-1/4"	View 1-1/2" Combs
1-3/4" (45mm) Comb Binding Supplies	375	1-1/2"	View 1-3/4" Combs
2" (50mm) Comb Binding Supplies	425	1-3/4"	View 2" Combs

How to Measure Your Book Size:

How To Measure Thickness of a Book for Binding Illustration

To measure the thickness of your book or presentation, lay the covers & all its contents together in a stack flat on a table. Let the pages rest on top of each other without pushing down on them, then measure the total thickness.