Print Trail

Wiro Binding: Lay-Flat, Fold-Back Books

Need a book that lays completely flat or folds back on itself? Wiro binding uses a metal wire spine for maximum flexibility and durability.

Wiro bound book folded back on itself

Wiro binding allows pages to lay flat or fold completely back on themselves

What is Wiro Binding?

Wiro binding (also known as Wire-O, twin-loop wire, or double-loop wire binding) uses a series of metal wire loops that thread through punched holes along the spine edge of your pages. The wire is then crimped closed to secure the pages.

Unlike spiral coil binding (which uses a continuous plastic or metal coil), Wire-O uses pairs of wire loops that create a more professional, book-like appearance with a flatter spine.

Key benefit: Wiro bound books can open flat, fold back 360°, and hold up to heavy daily use – making them perfect for workbooks, manuals, and reference materials.

Wire-O vs Spiral Coil

Both are great for lay-flat functionality, but there are key differences:

Wire-O (Twin Loop)

  • • C-shaped wire loops, crimped closed
  • • Cleaner, more professional appearance
  • • Lies flatter on a desk or shelf
  • • Metal only (usually black or silver)
  • • Slightly more expensive

Spiral Coil

  • • Continuous coil threaded through holes
  • • More casual, notebook appearance
  • • Can accommodate more pages
  • • Available in plastic or metal, many colours
  • • Generally lower cost

We typically recommend Wire-O for professional publications and spiral coil for educational materials or internal use.

Why Choose Wiro Binding?

360° Fold-Back

Pages fold completely back on themselves, making the book half its size – perfect for limited desk space or holding in one hand.

Perfect Lay-Flat

Books stay open at any page without needing to be held down. Essential for reference materials, cookbooks, and workbooks.

Durable Metal Wire

Wire-O binding is tough enough to withstand heavy daily use. Pages rotate smoothly without tearing or binding.

Easy Page Removal

Pages can be cleanly removed if needed (for worksheets or forms), without damaging other pages.

Cover Options

Wiro bound books offer flexible cover choices to suit your needs:

Card Cover

Printed card stock, typically 300-350gsm. Full colour, laminated for durability. The standard choice for most wiro books.

Board Cover

Thicker, rigid board for a more substantial feel. Can be wrapped in printed paper or cloth. Good for premium manuals and reports.

Clear Acetate Front

A transparent plastic front cover that shows the first page. Popular for reports, proposals, and presentations.

Wire Colours & Sizes

Wire Colours

  • Black – Professional, versatile (most popular)
  • Silver – Clean, modern look
  • White – Light, clean aesthetic
  • • Custom colours available on request

Page Capacity

  • • Up to ~200 pages (100 sheets) typical
  • • Wire diameter increases with page count
  • • Multiple sizes available to match your book
  • • We'll recommend the right wire for your project

Wiro Binding is Ideal For

Book Types:

  • • Training manuals and workbooks
  • • Technical documentation
  • • Cookbooks and recipe collections
  • • Calendars (wall and desk)
  • • Notebooks and journals
  • • Planners and diaries
  • • Reports and proposals
  • • Music books

Best When:

  • • Book needs to lay completely flat
  • • Users need to fold pages back
  • • Heavy, frequent use expected
  • • Pages may need to be removed
  • • Functional use takes priority
  • • Book will be written in

Considerations

  • No printable spine – Wire binding doesn't have a spine that can be printed on, so it's not ideal for bookshelf display
  • Page count limits – Very thick books may require a different binding method
  • Functional appearance – Wire binding looks practical rather than premium; for prestige, consider case bound books or flexi bound books

Explore Other Binding Options

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