Mice can travel hanging upside down from hardware mesh of what size?

Mice can travel hanging upside down from hardware mesh of what size?

• A. 1/2 inch
• B. 1/4 inch
• C. 3/8 inch
• D. 1/8 inch

Answer: (B)

Opening size on hardware mesh determines whether a mouse can pass through or simply grip and crawl along the surface. A house mouse is small enough to squeeze through openings about one-quarter inch in diameter, and it can also cling to and travel along the underside of mesh of that size. That’s why hardware cloth with one-quarter inch openings is the standard threshold used to exclude mice: larger openings are easy for them to breach, while smaller openings improve exclusion. In practice, using one-quarter inch or smaller mesh prevents them from moving through or along the barrier.

Opening size on hardware mesh determines whether a mouse can pass through or simply grip and crawl along the surface. A house mouse is small enough to squeeze through openings about one-quarter inch in diameter, and it can also cling to and travel along the underside of mesh of that size. That’s why hardware cloth with one-quarter inch openings is the standard threshold used to exclude mice: larger openings are easy for them to breach, while smaller openings improve exclusion. In practice, using one-quarter inch or smaller mesh prevents them from moving through or along the barrier.