Junior, or half-letter size, uses paper that's half the size (5 1/2" x 8.5") of standard U.S. copy paper. It uses eight discs.
Midway is the name given to Levenger's competitor to the popular Happy Planner system. Levenger Circa Midway paper is 7 3/4" x 9 3/8", slightly larger than Happy Planner paper which is 7" x 9 1/4". Both use nine discs. Because Planner covers are bigger than the paper, you can use either company's paper in the competitor's binder, without it being a big deal.
Full size is equivalent to standard American printer paper, 8 1/2" x 11", also called letter size. It uses eleven discs.
International paper comparisons: Depending on the size of your planner cover, you may be able to get away with using quality yet budget-friendly international paper. For example, you may cut out the paper from a $2 Muji A5 notebook, and punch it to use in your junior planner. But you should be aware of the size differences.
A5 paper is 5.83" x 8.27", so it's similar to U.S. junior/half-letter. But it will appear slightly taller and slightly thinner.
B5 paper is 6.9" x 9.8", making it similar to Levenger Circa Midway and Happy Planner papers. But it will appear slightly more narrow and taller.
A4 paper is 8.27" x 11.69", so it is similar to U.S. full- or letter-sized paper. But it is slightly more narrow and taller.
This disc-bound system combines the flexibility of a binder with the compact feel of a notebook. Pages are typically punched with a special mushroom-shaped hole that snaps onto the discs.
Popular among students, professionals, and creatives, disc-bound planners support various inserts—calendars, to-do lists, habit trackers, and more. Brands like Levenger, ARC, and Happy Planner offer a wide range of disc sizes and accessories to personalize each planner.
