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APPROXIMATE RING CAPACITIES

(based on 20 lb. bond paper)

Ring Size   Maximum Sheets
1/2"   100 (200 pages)
3/4"   125 (250 pages)
1"   150 (300 pages)
1 1/2"   200 (400 pages)
2"   325 (650 pages)
2 1/2"   425 (850 pages)
3" (Angle D)   600 (1200 pages)
4" (Angle D)   900 (1800 pages)

HOW TO MEASURE RING SIZE

How to measure ring size

RING TYPES

Round   Advantages   Riveted to spine allowing for two full inside pockets on front and back.
    Disadvantages   In a full binder, sheets pull when binder is opened, particularly on larger ring sizes.
Rivets show on outside spine (unless hidden).
Straight D   Advantages  

Pages remain flat when binder is opened
Rivets show on back cover.
    Disadvantages   Full pocket on inside back cover is not possible.
Angle D   Advantages   Pages remain flat when binder is opened.
Rivets show on back cover.
Allows for easier page turning on larger ring sizes.
Ring is the strongest and has the lowest profile (spine size) for equivalent capacities.
    Disadvantages   Full pocket on inside back cover is not possible.

VINYL TYPES

Suede   The most popular vinyl with a pebbled texture and the greatest variety of colours.
Milano   Smooth surface with a cloudy printed pattern and shallow vein texture. Available in four standard colours.
Ginza   Similar to Milano with less print pattern and more vein texture. Available in more colours than Milano.
Castillian   Thick material with a shiny surface and a very shallow texture resembling a smooth leather surface. An excellent product for embossing and foil stamping.
Patent   Extremely smooth shiny surface. Standard colour is white but other colours are available.
Copy Safe /Copyguard   A clear vinyl with a surface treatment that will not allow copier toner to stick to it. Excellent for front cover overlays but cannot be printed.
Frosted   A clear translucent vinyl used to suppress glare while maintaining the clarity of the background image.

POLY TYPES

Polyethylene   An opaque plastic with a pebbled texture, available in a variety of colours and thicknesses. Can easily be printed but requires adhesive vinyl pockets to be applied.
Polypropylene   A translucent plastic with a slight pebbled texture. Available in white and a limited number of bright colours. Requires the use of adhesive vinyl for pockets.