wireo

Wire-O is a binding method used to assemble bound documents with a double-loop wire spine. It is commonly referred to as Wire-O, twin-loop binding, or Wiro binding. The pages are punched along the binding edge with a row of oblong holes, and a continuous double-loop wire is threaded through these holes to form the spine. This design allows the document to rotate a full 360 degrees and lie flat, making it easy to read and write on.

The binding requires two key components: a punching system to create the oval holes and a wire closing or binding machine to form and secure the twin-loop spine. Wires come in various diameters, colors, and finishes to suit different thicknesses and aesthetic preferences. The resulting spine is typically sturdy and can be opened and closed without removing the pages.

Applications for Wire-O include notebooks, planners, manuals, catalogs, calendars, and professional binders. It is favored for materials that benefit from a clean, professional appearance, easy writing access, and the ability to lay flat for presentations or workbooks.

Comparison to other bindings shows that Wire-O often provides a more polished look and a sturdier feel than plastic comb binding, with the advantage of flat-laying pages. However, it requires specialized punching and binding equipment and can be more costly for small print runs. The term Wire-O is widely used in various markets, though regional names such as Wiro are also common.