Best Mouse and Rat Traps and How to Set Them Right

For most homes, the best trap is a simple snap trap sized for the animal: mouse traps for mice, larger rat traps for rats. The CDC recommends snap traps for reducing rodents around the home and advises against glue traps and live traps. The trap matters less than where you put it. Set traps against walls on the routes rodents use, bait them lightly and check them daily.

Here is what works, what to skip and how to set traps so they catch.

Snap traps

Snap traps are cheap, quick and reusable. Wooden and plastic versions both work. Plastic traps with a wide trigger pedal are easier to set and to clean. Buy the right size. The CDC notes that mouse and rat traps are different, and a mouse trap will not hold a rat.

Advantages: the rodent is killed quickly, you can see the result and you can remove it before it smells. Disadvantages: they need careful placement away from kids and pets.

For homes with children or pets, put snap traps inside a tamper-resistant box or station, or place them behind appliances and inside cabinets where hands and paws cannot reach.

Electronic traps

Battery-powered electronic traps kill with a shock inside an enclosed chamber. They are clean and keep the rodent out of sight, which some people prefer. They cost more and need fresh batteries. Size matters here too: buy rat models for rats.

They work best placed against walls on active runways, just like snap traps.

Multi-catch mouse traps

Wind-up or tip-style multi-catch traps hold several mice. Professionals use them in commercial settings and along basement walls. If you use them, check them daily. A trap full of live mice creates the urine and stress the CDC warns about.

Glue traps and live traps

The CDC advises against both. Its guidance says these traps can scare rodents and cause them to urinate, which can increase your chance of getting sick. Glue traps also catch pets, birds and other animals by accident, and they are a slow death for whatever is caught.

Live traps raise another problem. You then have to release a live rodent somewhere, and a mouse released near your home is likely to come right back. Relocating rats just moves the problem to someone else's block.

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How to set traps that catch

The CDC's trap guidance and long-standing extension advice agree on the basics:

Place traps against walls. Rodents run along edges. Put the bait end of the trap against the wall so the trap forms a T with it.
Put traps where you see signs: droppings, rub marks, gnawing and near entry points.
Use a small amount of soft, sticky bait. The CDC says chunky peanut butter or mutton fat works best. Too much bait lets the rodent eat without tripping the trigger.
Use enough traps. For mice, several traps a few feet apart along an active wall work better than one trap per room.
For rats, pre-bait. The CDC notes rats may take several days to approach new traps. The University of Florida guide says a rat may take a week and suggests leaving traps unset for several days. Then set them all at once.
Check traps daily and dispose of dead rodents right away, following CDC cleanup steps.
Keep trapping until a week passes with no captures and no new signs. The CDC suggests keeping traps out at least 15 days and refreshing bait weekly.

Where to put traps in a Cleveland house

Older Cleveland homes have a few spots where traps tend to pay off:

On top of the basement foundation wall, where the wood sill sits. Mice run this ledge.
Along the basement wall behind the furnace, water heater and washer.
Under the kitchen sink, near where pipes come through the floor or wall.
In the space behind the stove and refrigerator.
Inside lower cabinets, against the back wall.
Along the garage walls and near the bottom corners of the garage door.
Near radiator pipes where they pass through the floor.

For rats, focus on the basement and garage, along walls with rub marks and near any floor drain with droppings around it.

What about bait stations?

Consumer rodent bait in the US is sold only as ready-to-use bait stations with block or paste bait. EPA rules removed loose pellets from consumer products. Rodents that eat bait can die in walls and cause odor, so indoor bait is a poor choice in most homes. Outdoors, licensed technicians use locked, tamper-resistant stations along foundations and fences.

If you have used traps for two weeks without results, or keep catching mice without the numbers dropping, the problem is likely an open entry point. See rodent exclusion and trapping and removal.

Frequently asked questions

What is the best bait for mice?

The CDC suggests a small amount of chunky peanut butter. Soft, sticky food works because the mouse has to work at it and trips the trigger.

How many mouse traps should I use?

More than you think. Put several traps a few feet apart along each active wall instead of one trap per room.

Why are my traps not catching anything?

Common reasons are traps placed away from walls, too much bait, the wrong size trap, or rats that are wary of new objects. Move traps to active runways and pre-bait for rats.

Should I wear gloves to set traps?

Gloves protect you from droppings and urine on the trap and around it. Wear them when you set, check and empty traps, and wash your hands afterward.

Can I reuse snap traps?

Yes. The CDC says to soak the trap in disinfectant for five minutes, release the rodent into a bag, rinse the trap and let it dry.

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