How much does deck cost in Illinois

LandscapingUpdated March 2026

The answer to 'how much does deck cost in Illinois' is that deck costs can vary significantly, but typically range from $15 to $35 per square foot. Several key factors influence the overall cost, including the size and complexity of the deck design, the type of materials used (wood, composite, or PVC), the accessibility of the installation site, and any additional features like built-in seating or lighting.

It's important to get quotes from multiple local deck contractors to understand the range of pricing in your specific area. Many factors unique to your property and project requirements will impact the final cost, so getting personalized estimates is essential.

Sources

Deck Cost Estimator— guide

Deck Building Costs— reference

Illinois Landscaping Association— authority

Frequently Asked Questions

What's the average cost to build a deck in Illinois?

Deck costs in Illinois typically range from $15 to $35 per square foot, depending on the size, materials, and complexity of the project.

How can I save money on a new deck?

To save money on a deck, consider using less expensive materials like pressure-treated wood, limiting the size and complexity of the design, and doing some of the prep work yourself if possible.

When should I hire a professional to build my deck?

It's generally best to hire a professional deck contractor, especially for larger or more complex projects, to ensure the deck is built safely and to code.

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