Welcome to the new Spine Bulk Diagram Calculator!

Thomson-Shore has finely tuned our spine bulk application to ensure quality and facilitates future enhancements.
A couple of notes:

  • Use the edit button to create additional spine bulk diagrams that have the same specifications, for example if you have a case and a jacket.
  • You now have the ability to select a Digital or Offset spine bulk diagram
  • Diagrams for gatefold, flat back cases and digital case bound are now easier to create.
  • Don’t use the “Back” arrow button – it will erase your specifications.

Just select Offset or Digital and enter the specifications to calculate the dimensions of your cover, jacket, printed case or cloth cover.
When done you can print from your browser or email the page url to yourself for future reference.