Print production, explained.
The math behind every number the estimator shows: sheet layouts, press economics, margins, paper weights, waste, and booklets. Each guide opens with the direct answer.
How print imposition works
Imposition is the arrangement of finished pieces on a press sheet so the fewest sheets produce the ordered quantity. How n-up counts are calculated, why rotation matters, and what limits the yield.
GuideChoosing digital vs offset printing
Digital wins short runs because it has almost no setup cost; offset wins long runs because its per-sheet cost is lower. Where the crossover sits and what else moves the decision.
GuideUnderstanding gripper margins
The gripper margin is the unprintable strip where the press grips the sheet: one long edge, subtracted once. How big it is, how it differs from a side guide, and the estimating mistake to avoid.
GuidePaper weight conversions: lb, pt, and gsm
US basis weight (lb) depends on each grade's basis sheet size, which is why 80 lb text and 80 lb cover are different papers. How lb, pt, and gsm relate and how to convert.
GuideSpoilage and makeready planning
Every run wastes sheets in setup and running. How to plan makeready waste per pass plus percentage running spoilage so the delivered count is never short.
GuideBooklet imposition basics
Saddle-stitched booklet page counts must divide by four, each folded sheet carries four pages, and thick booklets need creep compensation. The math from page count to press sheets.