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Ring Capacity for Looseleaf Binders

Listed below are the number of sheets of paper that will fit comfortably inside the ring metal.

Please use this information as a guideline only.
For exact fit, call us for a free mock-up of your actual manual.
Sheet quantities shown do not include sheetlifters
or index tabs which could significantly effect capacity.

Round Rings

To find the correct ring metal size, measure the inside diameter of the ring. The most economical and traditional, this metal can be mounted on either the spine or back cover.

Ring Size 20 lb Bond/
50 lb. Vellum
24 lb Bond/
60 lb. Vellum
28 lb Bond/
70 lb. Vellum
1/2" 90 70 60
1" 170 150 135
1 1/2" 285 240 210
2" 370 320 280
2 1/2" 480 380 360
3" 560 470 420
         

Straight D-Rings

To find the correct ring metal size, measure the "flat" portion of the ring. Offers more capacity than a regular round ring, but is difficult to turn pages.

Ring Size 20 lb Bond/
50 lb. Vellum
24 lb Bond/
60 lb. Vellum
28 lb Bond/
70 lb. Vellum
1" 225 155 140
1 1/2" 320 250 230
2" 425 350 315
2 1/2" 485 430 350
         

Angle D-Rings

To find the correct ring metal size, measure the inside "Angle" Portion of the ring. Provides the most capacity, with easy access to pages and less paper tearout.

Ring Size 20 lb Bond/
50 lb. Vellum
24 lb Bond/
60 lb. Vellum
28 lb Bond/
70 lb. Vellum
1" 220 150 135
1 1/2" 315 245 225
2" 420 345 315
2 1/2" 520 420 380
3" 600 490 430
4" 890 710 620