Rats are cautious by nature, which means you're more likely to find evidence of them than see one in person.
Footprints are one of the clearest signs of activity, especially in dusty basements, attics, crawl spaces, or along the perimeter of a building. Learning to spot and read them can help you catch a problem early, before it grows into something bigger.
Rat tracks usually show four toes on the front feet and five toes on the back feet, with claw marks often visible at the tip of each toe. A full rat print from the back foot typically measures around three-quarters of an inch to one inch long.
You may also notice a tail drag mark running between the footprints, since rats often drag their tails as they move along a surface.
Tracks tend to show up most clearly in dust, mud, or fine debris, which is why basements, attics, and areas near utility lines are common places to spot them. Norway rats (Rattus norvegicus), the species most often found around homes and businesses in the US, tend to stay close to the ground and travel along the same paths repeatedly, so you may find tracks clustered along a wall or baseboard rather than scattered randomly.
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Size is the easiest way to tell the two apart: Rat prints are noticeably larger, while mouse tracks are smaller and lighter, often closer to the width of a pencil eraser. Mouse trails also tend to look more erratic, since mice are smaller and more likely to explore a wider area, while rats tend to stick to consistent, direct routes once they've established one.
If you're still unsure which rodent you're dealing with, it's worth looking for other clues nearby, like droppings or gnaw marks, since the size difference tends to hold true across most types of evidence.
Rats tend to travel along the same routes night after night, so certain spots are more likely to show tracks than others. Dusty or undisturbed areas, like the back of a crawl space, behind stored boxes, or along exterior foundation walls, are good places to check first.
Areas near potential entry points, such as gaps around utility lines or foundation vents, are also worth a look, since this is where rats tend to pass most frequently.
Some property owners lightly dust an area with an unscented powder, such as flour, and check it the next day for fresh prints. This can help confirm activity in a specific spot, but it's really just a way to spot-check an area you already suspect, not a way to address the problem itself.
Tracks rarely show up alone. A few other signs often appear in the same areas:
According to the CDC, droppings and gnaw marks are also two of the clearest early indicators of rodent presence, and they're worth documenting if you're building a picture of an active infestation.
Finding tracks confirms that rats are active on your property, which is useful information even without a visual sighting. Rats can carry pathogens linked to illnesses such as leptospirosis and hantavirus, which can spread through contact with droppings, urine, or contaminated dust.
Beyond health concerns, tracks can also indicate a specific entry point or nesting area, making it easier for a technician to target treatment where it's needed most.
Spotting tracks and burrow holes is useful, but closing them off is what actually keeps rats from coming back. Our technicians rely on the innovative Flexi Armour™, a knitted steel mesh built for professional-grade rodent exclusion. It holds its shape under pressure, so it resists the gnawing and pulling that loosens weaker materials over time, and it stands up to weather and moisture without breaking down.
Rather than patching the one hole you've found, we fit it as part of a full inspection, sealing every entry point a rat could use, not just the obvious ones.
A rat's back footprint is usually around three-quarters of an inch to one inch long, with four toes visible on the front feet and five on the back feet.
Not always, but it's common. A thin line running between footprints is a good sign you're looking at rat tracks rather than another pest.
Often, yes. Tracks leading to a small, smooth-edged hole along a foundation, under a shed, or near a garden bed are a strong sign of a nearby burrow, since rats tend to travel the same route between their nest and a food source.
Rats can't dig through solid concrete, but they're persistent diggers that will work around it, finding gaps, cracks, or soft soil at the edges of a slab or foundation instead.
It's worth noting the location and checking nearby for tracks, droppings, or fresh digging, since this can help confirm whether the burrow is active. For an active issue, a professional inspection can confirm how widespread it is and recommend next steps.