Spiral Binding

Learning Center

Spiral binding is one popular method of securing loose printed pages using single or double loop wire that fits into round or rectangular holes in the pages. Spiral binding allows the books to lay flat when opened cover to cover.
Spiral binding is used for blank notebooks and for reports, mostly for books that have a short shelf life. Also commonly used for cookbooks, calendars, and instruction manuals where the books have to be opened wide.
Spiral binding is elastic and does not get out of shape easily.

"Pages turn very easily and the book will lay completely flat."

Properties of this binding are:
  • Pages turn very easily and the book will lay completely flat.
  • Pages may also be opened back to back, while remaining flat.
  • Very durable. Excellent crush resistance.
Binding books with this system involves 3 simple steps:
  1. Punching the paper and punch.
  2. Inserting the spiral.
  3. Cutting and crimping the ends of the spiral.

Coil binding is available with 4:1 pitch binding. 4:1 machines punch 4 holes per inch. 4:1 coils can bind from 1/4 inch (20 sheets of 20 pound paper) up to 1 1/4 inch (230 sheets of 20 pound paper).

Coil Diameter
 
Approximate Thickness Including Covers
 
Number of Pages (70# Matt)
 
6mm
7mm
8mm
9mm
10mm
11mm
12mm
13mm
14mm
15mm
16mm
17mm
18mm
19mm
20mm
22mm
23mm
25mm
28mm
30mm
32mm
33mm
35mm
38mm
40mm
45mm
50mm
 
1/4" (0.25")
9/32" (0.25")
5/16" (0.31")
11/32" (0.34")
3/8" (0.38")
7/16" (0.44")
15/32" (0.47")
1/2" (0.5")
9/16" (0.56")
19/32" (0.59")
5/8" (0.63")
21/32" (0.66")
11/16" (0.69")
23/32" (0.72")
3/4 (0.75")
7/8" (0.88")
15/16" (0.94")
1"
1-1/8" (1.125")
1-3/16" (1.19")
1-1/4" (1.25")
1-5/16" (1.31")
1-3/8" (1.38")
1-1/2" (1.5")
1-9/16" (1.56")
1-3/4" (1.75")
2"
 
30
42
54
65
75
85
92
105
115
125
135
142
155
160
172
190
200
220
250
270
280
290
310
330
350
390
440