The double-loop wires are produced open to be inserted in pre-punched holes of the suitable dimensions. Once inserted in the proper holes they are simply crimped closed with a wire closer. The 3 to 1 (3:1) pitch is used for books up to about 12mm thick and 2 to 1 (2:1) wire can be used for books up to about 30mm. 2:1 wire is recognisable as the holes are larger than those produced for 3:1 binding and are spaced further apart. There are 23 holes on an A4 size sheet when it has been punched 2:1, 3:1 has 34 holes on an A4 sheet.
These 2:1 wires are also popular scrapbooking items and are suitable for the popular Bind-It-All machine.
As a general rule of thumb add 3mm to the thickness of your book (uncompressed) to choose the correct wire.
You can also use our quick selector to find the right wire, based on 80gsm stock with a
front and back cover:
Have you considered our very own
plastic spirals as an alternative to traditional wire coil binding? Combine your wire purchase with our
binding covers for a complete binding package.
Laminating
Binding Supplies
3:1 Binding Wire
