Print Sheet Layout Calculator

It computes how many pages fit both as entered (cols1 × rows1) and rotated 90 degrees (cols2 × rows2), then takes whichever count is higher. Press sheets are rarely a clean multiple of the page dimensions in just one orientation, so checking both catches layouts where rotating the page squeezes in an extra row or column.

The grip edge is a fixed 0.5" strip reserved along the sheet's height where the press's gripper bars physically hold the sheet as it feeds through — nothing can print there. The calculator subtracts it from the sheet height before fitting pages, but doesn't let you adjust the value since 0.5" is a standard allowance across most sheet-fed presses.

Bleed is added to both sides of each page's width and height before the fit calculation runs, so a larger bleed makes every page's effective footprint bigger and can push a layout below the next whole-column or whole-row threshold. Since bleed is doubled per page (both edges), even a small increase can matter when a layout is already tight against the sheet dimensions.

Because the divisor is twice the pages-per-sheet figure. Pages per Sheet describes the imposition grid on one side of the press sheet, and commercial work prints both sides (sheetwise or work-and-turn), so a physical sheet carries double that. A 16-page booklet at 10 pages per sheet needs ceil(16 / 20) = 1 sheet, not 2. If your job genuinely prints one side only, double the figure the calculator reports.

No — it assumes every page on the sheet is the same width and height. A job mixing trim sizes (like a booklet cover plus interior pages of a different size) needs to be run through separately for each distinct page size, since the imposition math only optimizes a single uniform grid.