Paper Grain Direction Planner
Select the sheet grain and the primary fold/binding direction. The planner flags whether they are parallel and explains why the finishing provider still controls the decision.
Enter your job values
Use the real values from your job. Optional fields can stay blank; zero should only be used when the value genuinely does not apply.
Your result will appear here
2 required values are still missing.
Paper bulk, grain and equipment can change the geometry
Booklet creep, fold compensation and spine thickness are physical-production estimates. Whenever a fold, bind, die or laminator controls the finished piece, record the actual stock caliper and the equipment/vendor specification rather than converting GSM to thickness by assumption.
What the result is useful for
Paper manufacturers commonly recommend folding/binding with the grain for cleaner finishing and reduced stress; documenting the direction before imposition can prevent an avoidable production conflict.
How the calculation works
The check compares the selected grain axis with the selected primary fold/binding axis.
What this calculator cannot know
Some stocks and products behave differently. Pretest the actual paper and follow the paper/finishing equipment guidance, especially for heavy or unusual substrates.