20-30 Gallon Trash Bags & Can Liners

20-30 gallon trash bags and can liners, sold wholesale by the case for kitchen, shop and janitorial cans. Choose from 14 plastic liners in high density, linear low density and low density film and black, clear, natural and white, sorted by material so you can compare them quickly.

A 30" x 36" or 30" x 37" flat liner fits most 20-30 gallon round cans. Gusseted liners are listed by the same flat size.

20-30 Gallon Trash Bags & Can Liners

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Stock #Size (W x L)ThicknessColorPackingUnitPriceQtyOrder
Stock #Size (W x L)ThicknessColorPackingUnitPriceQtyOrder
Stock #Size (W x L)ThicknessColorPackingUnitPriceQtyOrder

High Density or Low Density?

  • High density: thin, light and strong for its weight, at a low cost per bag. Best for paper, food waste and everyday trash without sharp edges. Sold in microns.
  • Linear low density: stretches instead of splitting, with better tear and puncture resistance for heavier, irregular trash. Sold in mil.
  • Low density (white): soft, flexible and opaque, with a child suffocation warning printed on the bag.

How to Measure a Can for a Liner

  • Round can: liner width = can diameter x 3.14, divided by 2, plus 1". Liner length = can height + diameter + 5" for overhang.
  • Square can with a gusseted liner: add 1" to the can's width and depth. Liner length = can height + depth + 6" to cover the contents and tie the bag closed.

More Sizes

See all trash bags and can liners, or drum liners for 55 gallon drums. Need a size we don't list? Request a quote.