Deck Building Cost in Missouri (2026)
Deck Building in Missouri runs about 5% below the national average. A typical 320 sq ft project starts around $4,560–$7,600 for pressure-treated wood. Estimate your exact project below.
Deck Building Cost Calculator
Adjust the details for an installed-cost range tailored to you.
Length × width of the deck surface. A 16×20 deck is 320 sq ft.
Ballpark estimate for planning — not a quote.
Get your exact price from local deck pros
This is a ballpark — compare up to 3 free, no-obligation quotes from vetted contractors in Missouri.
Deck Building cost in Missouri by material
Installed cost for a typical 320 sq ft project in Missouri.
| Material | Per sq ft | Typical MO project |
|---|---|---|
| Pressure-treated wood | $14.3–$23.8 | $4,560 – $7,600 |
| Cedar / redwood | $23.8–$38.0 | $7,600 – $12,160 |
| Composite (Trex-style) | $28.5–$57.0 | $9,120 – $18,240 |
What affects your Missouri cost
- Decking material and railing style
- Height off the ground and stairs
- Footings, framing and permits
- Built-ins (benches, pergola, lighting)
- Local labor rates
Missouri deck building — FAQ
How much does deck building cost in Missouri?
In Missouri, a typical 320 sq ft deck building project runs about $4,560–$7,600 for pressure-treated wood, installed. That's about 5% below the national average. Higher-end materials cost more — use the calculator above for your exact size and material.
How much does deck building cost per sq ft in Missouri?
In Missouri, installed deck runs about $14.3–$57.0 per sq ft depending on material (pressure-treated wood $14.3–$23.8, cedar / redwood $23.8–$38.0, composite (trex-style) $28.5–$57.0). That's about 5% below the national average.
How much does it cost to build a deck in 2026?
A typical 320 sq ft deck runs about $5,000–$8,000 in pressure-treated wood, or $10,000–$19,000 in composite, installed. Size, height, railings and material drive the price — use the calculator for a localized estimate.
Is composite decking worth it?
Composite costs roughly 1.5–2× wood up front but eliminates staining/sealing and lasts 25–30+ years, so total cost of ownership is often lower. It's the popular choice for homeowners who don't want annual maintenance.