What size trash can fits under a standard 15-inch kitchen cabinet?

A standard 15-inch base cabinet typically has an interior height of about 13 to 14 inches. You can usually fit a 5 to 7 gallon can that is 10 to 11 inches tall, leaving room for a lid. Measure the actual opening, because plumbing and hinges reduce the usable space.

Should I get a round or rectangular trash can for a kitchen cabinet?

Rectangular cans use cabinet space more efficiently because they fit flush against the walls and leave no wasted corner gaps. Round cans are cheaper and easier to find, but they waste space and can be harder to pull out from a deep cabinet. Choose rectangular for most base cabinets.

How do I know if a 13-gallon can will fit under my sink?

A 13-gallon can is usually 16 to 18 inches tall, which often exceeds the interior height of a standard sink base cabinet, especially with a lid. Measure the height from the floor to the underside of the sink basin and subtract 2 inches for clearance. Many under-sink cabinets fit only 5 to 10 gallon cans.

Can I install a pull-out trash can myself?

Yes, most pull-out frames come with mounting brackets and screws and take about 30 minutes to install with a drill. You need to measure the cabinet floor and drill pilot holes to avoid splitting the wood. If you are unsure about leveling or weight capacity, a handyman can do it in under an hour.

Trash Can Size for Kitchen Cabinet: A Step-by-Step Sizing Walkthrough

Stage 1: Measure the Cabinet Interior, Not Just the Door

Before you look at any trash can, you need the exact dimensions of the empty cabinet space. A tape measure is the only tool you need. Measure the interior width, depth, and height of the cabinet, from wall to wall and from the floor to the underside of the countertop or sink basin. Write these numbers down in inches and centimeters, because can sizes are often listed in both.

Pay special attention to the height if the cabinet sits under a sink. The plumbing trap and drain pipes eat into usable depth and width, so measure around them, not just the cabinet walls. For a regular base cabinet, the interior height is usually around 13 to 15 inches, but a pull-out cabinet can give you 18 to 20 inches. Always measure the narrowest point, because a can that fits on one side may jam against a pipe on the other.

Subtract at least 1 to 2 inches from the width and depth for clearance, and 2 inches from the height if you plan to use a lid. This clearance lets the can slide in and out without scraping the cabinet walls and leaves room for the lid to open fully. A common mistake is buying a can that fits the footprint but blocks the door from closing, so keep the hinge side of the door in mind as well.

A hand holding a measuring tape inside an empty kitchen base cabinet

Stage 2: Map Your Waste Volume and Refill Routine

Cabinet size limits how big the can can be, but your household's waste volume decides how often you want to empty it. Start by tracking what you throw away over a typical week. Count the number of full trash bags you produce, and note whether most waste is dry packaging, food scraps, or a mix. A single person might fill a 5-gallon bag every four days, while a family of four could fill a 13-gallon bag every two days.

This matters because a smaller can forces more frequent trips to the outdoor bin, and a larger can may sit unused for days, which can lead to odors and fruit flies. A good rule of thumb is to choose a can that holds at least one and a half times the volume of your typical daily waste. For example, if you fill a 13-gallon bag every three days, a 10-gallon can works well. If you empty the can daily, a 5-gallon can might be enough.

Also consider the bag size. A 13-gallon can needs 13-gallon liners, while an 8-gallon can uses 8-gallon bags. Using the wrong liner size leads to sagging or tearing, which creates messes. If you compost food scraps separately, you can get away with a smaller trash can, since the wet, smelly waste goes elsewhere.

Cabinet interior height (inches)	Typical can height (inches)	Usable can capacity (gallons)
13–14	10–11	5–7
15–17	12–14	8–10
18–20	15–17	12–13
21–24	18–20	15–18

Stage 3: Choose the Can Shape and Mounting Style

Rectangular cans use cabinet space more efficiently than round ones, because they fit flush against the back wall and side panels. A round can wastes the corners of the cabinet and often leaves a gap that collects crumbs. For a pull-out cabinet, a rectangular can with a sliding base or a frame that mounts to the cabinet floor is a common choice, but you can also buy a standalone rectangular can that sits on the floor.

Decide between a freestanding can and a pull-out system. A freestanding can is simpler and cheaper, but you have to reach into the cabinet to lift it out. A pull-out frame attaches to the cabinet floor and glides forward on rails, so the can comes to you. This makes a big difference if the cabinet is deep or if you have limited hand strength. Mounting a frame requires a few screws and takes about 30 minutes, but it changes how easy the can is to use every day.

Lid type matters too. A swing lid keeps odors in but adds height, so check the total height with the lid open. A sliding lid or a soft-close lid works well under a sink where vertical space is tight. If you skip the lid entirely, you gain a few inches of height, but you lose odor control. For a cabinet that closes completely, a lidless can is often fine, because the cabinet door itself blocks the smell.

A pull-out trash can frame mounted inside an open kitchen base cabinet

Stage 4: Test Fit and Adjust Before You Commit

Before you drill any holes or buy a permanent frame, do a dry run. Place the can inside the cabinet and close the door. Open and close the door a few times to confirm the can doesn't block the hinge or the door swing. If the can has a lid, open it fully and make sure it clears the underside of the countertop. A can that looks fine when closed can be useless if you can't open the lid without tilting it.

For a pull-out system, slide the frame in and out while the can is empty, then with a full bag. Check that the rails move smoothly and that the can doesn't tip forward when you pull it out. Most frames have adjustable mounting brackets, so you can shift the can left or right to avoid a pipe or a corner. If the can is too tall, you can often remove the lid or buy a lower-profile model, but you can't change the cabinet height.

If the can is too wide for the cabinet, you have a few options: use a smaller round can, install a narrower frame, or accept a can that sits outside the cabinet. Some people use a slim 8-gallon can that leaves room for cleaning supplies on the side. The goal is a can that slides in and out without catching, holds a standard liner, and leaves at least half an inch of clearance on all sides.

Close the cabinet door fully with the can inside to check for jams.
Open the lid and measure the clearance to the countertop.
Slide a full bag in and out to test the weight and balance.
Look for sharp edges on the can rim that could tear liners.

Stage 5: Finalize the Size and Plan Your Purchase

Once you have your measurements and a clear picture of your waste volume, you can narrow down the exact can size. Write down the maximum width, depth, and height your cabinet allows, then subtract the clearance you decided on in Stage 1. That gives you the largest can dimensions that will work. From there, choose a capacity that fits those dimensions and your emptying routine.

Compare your final numbers against product listings, and check the dimensions rather than just the gallon label, because a 10-gallon can from one brand may be taller than another's. Look for cans with a rolled rim or a built-in liner lock, since these hold bags in place and reduce tearing. If you buy online, read the customer photos and measure the can yourself when it arrives, because some listings have errors.

Keep your receipt and test the can in the cabinet as soon as it arrives. If it doesn't fit, most home stores accept returns within 30 to 90 days, but check the policy first. A well-chosen can will last for years, so take the extra 15 minutes to verify the fit before you commit to a permanent installation. This step prevents the frustration of a can that works on paper but fails in your actual kitchen.