A 20-gallon trash can usually measures about 19.5 inches across and 23 inches tall in round commercial models, or 18–20.25 inches wide by 23–29 inches high in rectangular kitchen versions.
Two cans with the same 20-gallon label can differ by six inches in height, which is the difference between fitting under your counter and blocking a drawer. Capacity is volume, not footprint. A round Rubbermaid BRUTE and a rectangular step can both hold 20 gallons, yet they occupy completely different floor space and clear different counter heights.
Here are the real measurements from current product listings, why they vary so much, and how to check a can against your own space before you buy.
Real Dimensions Of Popular 20 Gallon Cans
Manufacturer listings show three very different shapes carrying the same 20-gallon rating, and the numbers below come straight from current product pages.
| Model | Outside Dimensions | Notes |
|---|---|---|
| Rubbermaid BRUTE 20-gal round | 19.5 in diameter × 22.88 in high | Base can ships without a lid |
| Rubbermaid BRUTE 20-gal at Uline | 22 7/8 in H × 19 1/2 in D | 22 1/2 in wide across handles; inside 22 1/2 in H × 18 in D |
| Behrens 20-gal galvanized steel with lid | 19.50 in top diameter, 15.25 in bottom, 25.00 in high | Tapers toward the base; listing also shows 18 × 18 × 26.5 in overall |
| Typical rectangular kitchen step can | 18–20.25 in wide × 23–29 in high | Lidded models run tallest |
| Round commercial can, general range | About 19.5 in diameter × 22.9–23 in high | Most consistent shape category |
| Lidded step can, general range | Commonly 26–29 in high | Pedal and hinge hardware add height |
The pattern is clear: round cans stay near 19.5 inches wide and 23 inches tall, while lidded kitchen cans stretch toward 29 inches. If you are fitting a can into a tight cabinet gap, measure your clearance first — vendors rarely accept returns on a can that does not fit.
Why Two 20 Gallon Cans Measure Differently
The gallon rating describes internal volume only, so a manufacturer can hit 20 gallons with a wide, shallow tub or a narrow, tall barrel.
Three more factors swing the numbers:
- Lid or no lid. Some sellers list height with the lid on, others measure the bare can. That alone can shift a stated height by several inches.
- Overall vs. container-only dimensions. Listings often split out the can, lid, and dolly. Mixing those numbers produces a can that will not fit where you planned.
- Handles and taper. The Uline listing measures 22 1/2 inches across the handles but 19 1/2 inches at the body — a 3-inch difference on the same can.
Behrens states its published dimensions are taken from the outside of the can and may vary slightly from manufacturing tolerances. Treat every listing number as approximate and leave yourself a little slack.
Will It Fit? Round Vs. Rectangular In Real Kitchens
A round 20-gallon can and a rectangular 20-gallon kitchen can are not interchangeable in a tight space, even though the capacity matches.
A round commercial can at 19.5 inches in diameter needs a comparatively narrow slot but wastes the corners around it. A rectangular step can at 20.25 inches wide uses floor space more efficiently but often stands 26–29 inches tall, so it can foul a counter overhang or a drawer that pulls out above it. Neither shape substitutes for the other when clearance is measured in fractions of an inch.
Accessory fit works the same way. BRUTE lids and dollies are sold separately and sized by diameter, so a lid made for one can will not seat properly on a can of a different width.
One more point for food-service buyers: some BRUTE listings carry NSF or USDA Meat & Poultry Equipment Group approval, which affects commercial compliance. Check the exact model number, because approval is listed per product, not per size class. For homes, that detail rarely matters — what matters is measuring your space and knowing whether the can arrives with a lid. If you would rather skip the guesswork, this roundup of the best 20 gallon trash can with lid options compares models that already include one.
Behrens’ own product page is worth a look if you want to confirm the exact measurements on the galvanized steel model: Behrens 20-gallon steel can specifications.
In short: expect about 19.5 inches of width and roughly 23 inches of height from a round 20-gallon can, and plan for 18–20.25 inches wide and up to 29 inches tall if you want a lidded rectangular kitchen model.
FAQs
Does a 20-gallon trash can come with a lid?
Not always. Several Rubbermaid BRUTE commercial listings cover the can only, with lids sold as separate accessories sized by diameter. Kitchen step cans almost always include a lid built in. Check the product description line by line before ordering.
What liner size fits a 20-gallon can?
Trash bags are sold by capacity too, so match the bag’s gallon rating to the can rather than guessing by height. A bag rated for 20 gallons or slightly more gives enough slack to fold over the rim on a round can.
Can I use a round 20-gallon can under a kitchen counter?
Usually not without checking first. Round cans run about 23 inches tall but need a full 19.5 inches of width, while rectangular step cans are narrower yet often 26–29 inches tall. Measure both your counter clearance and your floor width before buying.
References & Sources
- Behrens. “20 Gallon Galvanized Steel Utility / Trash Can with Lid.” Source of the top and bottom diameters, 25-inch height, and the outside-measurement tolerance note.
- Uline. “Rubbermaid Brute Trash Can 20 Gallon, Gray.” Source of the inside dimensions and the handle-width measurement.
- Staples. “Rubbermaid Plastic Vented BRUTE Trash Can with No Lid, Gray, 20 Gal.” Confirms the base BRUTE can ships without a lid.
