A large deck can completely transform how you use your home—creating the perfect space for entertaining, relaxing, and enjoying the outdoors. For homeowners in O’Fallon, MO and across St. Charles County, well-designed deck and entertainment projects add both lifestyle value and long-term property value.
At Affinity Building Solutions, we design and build custom large decks that blend craftsmanship, durability, and functionality for year-round enjoyment.
Outdoor living continues to grow in popularity, especially in suburban areas like O’Fallon, St. Peters, Wentzville, and Lake St. Louis. Homeowners are choosing large decks because they:
➢ Expand usable living space
➢ Create dedicated entertainment areas
➢ Increase home resale value
➢ Improve backyard functionality
➢ Provide space for gatherings, grilling, and relaxation
A properly built large deck acts as an extension of your home, not just an add-on.
A large deck typically includes:
• Multi-level or oversized layouts
• Space for seating, dining, and grilling
• Integrated stairs and railings
• Structural footings designed for load support
• Optional features like pergolas or covered areas
These projects require professional design and engineering to meet St. Charles County building codes.
Many large deck projects include entertainment-focused upgrades such as:
• Built-in seating and benches
• Outdoor kitchens and grilling stations
• Fire features or fireplaces
• Covered deck sections or pergolas
• Lighting for evening use
• Composite or low-maintenance materials
These features turn a standard deck into a complete outdoor entertainment space.
Material selection plays a major role in performance and longevity.
➜ Pressure-treated wood (cost-effective)
➜ Composite decking (low maintenance)
➜ PVC decking (premium durability)
For Missouri’s climate, composite and PVC materials often provide better long-term value.
At Affinity Building Solutions, we manage deck projects from start to finish:
1. Site evaluation and design planning
2. Material and layout selection
3. Permits and inspections
4. Professional construction
5. Final walkthrough and approval
As a veteran-owned contractor, we focus on safety, structural integrity, and clean execution.
We design and build large decks across:
Costs vary based on scope, materials, and structural work. Large renovations typically range from $75,000 to $250,000+. A detailed estimate is essential.
Yes. Permits and inspections are required for structural decks. A licensed contractor handles this process.
Composite decking is popular due to low maintenance and durability in changing weather conditions.
Most large deck projects take 2–4 weeks, depending on complexity and weather.
Yes. A professionally built deck can significantly improve resale value and outdoor usability.
