Trash Bags

Bag capacity describes the bag, not the can it fits, and that single fact accounts for most wrong purchases here. Capacities run 4 to 64 gallons, and 13 gallon is the most stocked at 50 listings. Counts reach 2,000 on the commercial packs.

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Capacity and What It Actually Fits

A 13-gallon bag holds 13 gallons when it is standing free. Dropped into a snug 13-gallon can it has no slack left to cuff over the rim, which is why it slides down the inside and ends up under the rubbish.

Size up one step.

For a tall kitchen can at 13 gallons, a bag rated slightly larger cuffs properly and stays put. The same applies at every size in the range.

The Sizes That Are Stocked

Capacities cluster at four points.

13 gallon covers tall kitchen cans at 50 listings, 30 and 33 gallon cover outdoor and garden use, 45 gallon covers the large wheeled cans, and 4 gallon covers bathroom and office bins.

The 60 and 64 gallon listings are contractor and yard bags rather than household sizes. They suit a clear-out and do not fit any domestic can.

Thickness, Drawstring and Flap Tie

Thickness is stated in mils on some listings and implied by the word heavy duty on 37 others.

A thin bag is cheaper per bag and splits on anything with a corner, which makes it the more expensive choice for kitchen use.

Drawstring closures cost more than flap ties and are what most people are buying when they pay the difference. Flap-tie bags are fine in a bin that never gets carried far.

Compostable and Recycled Content

34 listings state compostable and 34 state recycled content across the wider paper and plastic collection, and a share of those are bags.

Compostable bags are thinner by nature and are not a like-for-like swap for a heavy-duty bag.

Bags and Bins

The outdoor cans these line are in outdoor trash cans, sized 14 to 50 gallons with 32 the most common. A 32-gallon can takes a 33-gallon bag comfortably and a 30-gallon bag badly.

Can Size to Bag Size

Every row buys a bag rated above the can so it cuffs over the rim rather than sliding down inside it.

CanBag to buyCommon countPrice band
4 gal bathroom4 to 6 gal50 to 110$9 to $15
13 gal tall kitchen13 to 16 gal40 to 100$12 to $35
32 gal outdoor33 gal25 to 50$15 to $40
45 gal wheeled45 gal20 to 50$20 to $45
Clear-out and yard55 to 64 gal20 to 50$25 to $60

Trash Bag Questions

What size bag fits a 13-gallon kitchen can?

A size up from 13, so the bag cuffs over the rim. A bag rated the same as the can has no slack and slides down inside it.

What size fits a 32-gallon outdoor can?

A 33-gallon bag. A 30-gallon bag fits badly in the same can for the same reason.

Is heavy duty worth the difference?

In a kitchen, yes. Thin bags split on anything with a corner, which makes the cheaper bag more expensive in practice.

Are compostable bags a direct swap?

No. They are thinner by nature and do not replace a heavy-duty bag, though they suit a caddy or a light bin.