The most common question before any deck project: what is this going to cost? Deck pricing varies significantly based on size, material, complexity, and site conditions. Here is a detailed breakdown of what decks actually cost in the Peoria, IL area in 2026 -- based on local labor and material costs, not national averages.
| Deck Size | PT Wood (installed) | Composite (installed) |
|---|---|---|
| 10x12 (120 sq ft) | $6,000-$9,500 | $11,000-$17,000 |
| 12x16 (192 sq ft) | $8,500-$13,000 | $15,000-$24,000 |
| 16x20 (320 sq ft) | $13,000-$20,000 | $22,000-$35,000 |
| 20x24 (480 sq ft) | $18,000-$28,000 | $30,000-$48,000 |
| 24x24+ multi-level | $25,000-$45,000+ | $40,000-$70,000+ |
Prices include footing installation, framing, decking, basic railing, and one stair section. Permit fees vary by municipality but typically run $150-$600 for residential decks in the Peoria area.
These ranges are a starting point. We give you a written quote with a specific number after seeing your site.
Call 309-220-9113Online deck cost calculators typically underestimate Midwest labor costs and use coastal material pricing for composite products. Trex Transcend composite decking costs more per board foot in Central Illinois than in the southeast due to distribution. Take national numbers as a floor, not a ceiling, when budgeting a Peoria deck project.
Pressure-treated pine at the smallest size that meets your needs, ground-level to skip the railing requirement, simple rectangular design, no frills. A 10x12 ground-level PT deck with basic stairs comes in around $6,000-$8,000 installed with permit. If budget is the primary constraint, that is your starting point.