Look at the guide below and find your waste receptacle to find the recommended liner size. 
Commercial can liner sizes are expressed in two numbers like "33x39". The first number is the size of the opening of the liner and the second number is the height of the liner. To find the correct size liner, first measure the can's circumference then measure it's height. To get the first number of the size of your liner, divide the circumference by 2 and round up to the nearest size (If your can is 64" around the top, 64/2=32. Round 32 up to the nearest size of "33"). For the second number (the height) add 4-5 inches to allow for overhang. This will be the minimum liner size for your trash can. I usually like to go a size larger so I can gather the bag at the top when I pull it out of the can.
Receptacle |
Description |
Liner Size |
|---|---|---|
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Rectangular Wastebasket | Very Small, 2 gal./7qt | 17x17 |
| Small, 3 1/2 gal./13qt | 17x17 | |
| Medium, 7 gal./28qt | 24x24 | |
| Large, 10 gal./41qt | 24x32 | |
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Round Wastebasket | |
| 7 gal./28qt | 24x24 | |
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Untouchable | |
| Half Round, 21 gal. | 33x39 | |
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Untouchable | |
| Round, 22 gal. | 30x36 | |
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Untouchable | |
| Square, 19 gal. | 30x36 | |
| Square, 23 gal. | 30x36 | |
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Slim Jim | |
| 23 gal. | 33x39 | |
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Slim Jim Wall Mount | |
| 15 gal. | 33x39 | |
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Ranger | |
| 35 gal. | 38x58 | |
| 45 gal. | 43x47 | |
| 65 gal. | 38x60 | |
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Wastemaster | |
| 16 gal. | 30x36 | |
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Marshal | |
| 15 gal. | 30x36 | |
| 21 gal. | 33x40 | |
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Step-On Cans | |
| Round, 4.5 gal. | 24x24 | |
| Rectangular, 8 gal. | 24x33 | |
| Rectangular, 12 gal. | 30x36 | |
| Rectangular, 18 gal. | 30x36 | |
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The Defender Step Can | |
| Square, 12 gal. | 24x33 | |
| Square, 24 gal. | 33x39 |
Linear Low Density (LLD) - Multipurpose can liners recommended for sharper objects and tougher transport conditions. Greater tear resistance compared to HD liners. Offers good puncture resistance and load capacity.
High Density (HD) - much thinner than LLD liners, yet can hold the same or greater weight. Good tear resistance. Better puncture resistance and load capacity when compared to LLD liners.
Can Liner Color - Black, white and natural are the most common can liner colors. The "see through" quality of natural bags makes them ideal for environments where transparency is required for security purposes. If transparency is not required, black or white bags are preferred. Special color can liners (red, yellow, blue, brown, gray) can be used for at-a-glance content identification. For example, red bags are often used to indicate hazardous waste while blue bags may indentify recyclable waste.
Can Liner Roll Types - A cored roll consists of can liners that are rolled together on top of a cardboard cylinder (similar to paper towel rolls). A coreless roll consists of can liners that are tightly rolled together without a cardboard cylinder. The can liners on both cored and coreless rolls are connected by perforated edges. The end user separeates the bags by tearing along the perforation. An interleaved coreless roll is similar to a coreless roll but liners are interleaved for nonperforated dispensing.
Star Seal - Designed without gussets, this is the most common type of seal. The star seal eliminates gaps along the seal, allowing the bag to conform more easily to the shape of the waste container. Star seal liners more evenly distribute weight inside the bag, maximizing carrying capacity and helping eliminate leaks
Gusset Seal - Designed with both sides tucked in to form gussets, this seal is found on flat-style bags. Gusset seal liners are sealed through four layers of film where indented and just two layers of film in the middle, creating a potentially weak bottom seal.
Flat Seal - Designed with a bottom seal to create a two-dimensional bag, much like a pillowcase. Flat seals are stron along the bottom, but may leak from the corners. Liners with a flat seal do not conform as well to the shape of most containers.