What size should a KDP sudoku book be?
Updated 15 September 2026
The most popular sudoku trims are 6 by 9 inches for a standard book and 8.5 by 11 inches for large print. One puzzle per page reads best; large print sells well to older solvers.
Pick a trim size by audience: 6 by 9 is compact and cheap to print, while 8.5 by 11 gives a big, easy-to-read grid for the large-print market. You can export the same book at any trim without regenerating.
Publisher Studio sizes the interior with the right margins and gutter for your page count, so it passes KDP review.