Identifying Animal Activity Under the Deck, Shed,  Porch, or Crawl Space

Techniques and principles for determining what animal is living under your deck and shed.

Look for a hole, or tear in covering leading under your structure. The size of this entrance is the best indicator as to what animal you have.

How Large is the Hole?

>3 inches:

woodchuck hole

2-3 inches:

rat hole

1-2 inches:

chipmunk hole

<1 inch:

mouse hole