Chewing, digging, jumping
Why does my dog dig near the patio or decking?
Last updated 23 September 2026 · How we write and check this
Short answer
The gap between paving slabs or decking boards often traps cool damp soil that insects gather in, and the shaded edge stays cooler than open lawn on warm days. A dog scratching at the border is usually chasing either that temperature difference or something moving just underneath.
Temperature and shade
Paving and decking hold shade for longer stretches of the day, so the soil right at the edge stays noticeably cooler than open ground, which makes it an appealing spot to dig down into on a hot afternoon.
Insects gather in the gaps
Ants, beetles, and other insects often nest in the loose soil under the edge of a patio or deck, and a dog picking up movement or scent there will dig persistently to reach it, sometimes undermining the edging over time.
Protecting the structure
Lay a strip of mesh or gravel along the exposed edge to make digging uncomfortable, and treat any insect activity you find. Offering shade and a cool mat elsewhere in the garden also removes the temperature motivation on hot days.
Key takeaways
- Shaded, cooler soil at patio and decking edges is a common draw on hot days.
- Insect nests in the loose soil there add a second reason to dig.
- A mesh or gravel border, plus shade elsewhere, removes both motivations.