What's the smallest gap a rat can get through?

Question

How narrow a hole or gap can rats typically get through?

Callum · Answer

rats and mice can get through a hole as small as a 5 pence coin

Stephen · Answer

About the size of a 2 pence piece for an adult rat and a bit less for a young one

Pm · Answer

if you can get a pencil in the gap then a mouse could get in, a 2pence piece is a good guide for a rat

Julian · Answer

Half the size of its body.All holes must be proofed,call a professional

Kirk · Answer

Anything a pencil can fit into so can a mice, they bend and sometimes break there bones to gain access, this is why air bricks are a common access point for mice.

Pat · Answer

Rats and mice can enter through holes typically as small as a 5 pence coin ish

Chris · Answer

A brown rat generally requires 15mm to access a gap, but a juvenile rat may access a smaller gap.
Regards.
Chris at ARI Pest Control.

Michael · Answer

Hi Joyce, a rat can get through a 20mm hole and a mouse can get through a 6-7mm hole about the diameter of a normal sized pen.

Rach · Answer

the size of a 5pence piece is typically around the smallest size

What's the smallest gap a rat can get through?

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