Squirrels are notorious for chewing on wood fences, but did you know that this behavior is often linked to a nutritional deficiency? If you’re noticing fresh chew marks on your fence, it could be due to squirrels suffering from calcium deficiency or Metabolic Bone Disease (MBD) caused by a poor diet.

As temperatures rise, squirrel activity increases, leading to more frequent chewing on fences, decks, and even attic structures. While some homeowners find squirrels entertaining, others see them as a nuisance—especially when they start damaging property.

Squirrels chew on fences for several reasons, including:

• Nutritional Deficiencies – Lack of calcium can drive squirrels to gnaw on wood for minerals.
• Instinctive Behavior – Like rodents, squirrels have ever-growing teeth and need to chew to keep them from overgrowing.
• Territorial Marking – Some squirrels chew to mark their territory or establish dominance in an area.

Many homeowners ask: “How do I stop squirrels from chewing on my fence?” Unfortunately, no commercial product guarantees a squirrel-proof fence. Chemical deterrents may pose risks to pets and wildlife, and applying metal or PVC covers may not always be practical.

Some homeowners have found success in reducing fence damage by providing alternative food sources such as:

• Peanuts
• Sunflower seeds
• Calcium-rich food (crushed eggshells, deer antler supplements, or mineral blocks)

While feeding squirrels might seem counterintuitive, providing them with the nutrients they seek can reduce their need to chew on fences.

Squirrel damage can be frustrating, but understanding the root cause can help you take preventive measures. Whether you choose to deter them, feed them, or reinforce your fence, addressing the issue early can save you money in the long run.

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