When it comes to outdoor living in Des Moines, homeowners are increasingly opting for Trex composite decking due to its remarkable durability and low maintenance requirements. Iowa’s climate, with its freezing winters and hot, humid summers, can be tough on traditional wood decks. Trex provides a long-term solution that withstands the elements while keeping its appearance for decades.
This 2025 guide breaks down everything you need to know about Trex decking costs in Des Moines and the surrounding area, from materials to installation, so you can budget effectively for your deck project.
A Quick View
Planning a Trex deck in the Des Moines Metro Area? Here’s what you need to know: expect to pay between $20 to $62 per square foot for a complete Trex deck installation, with material costs ranging from $5 to $16 per square foot depending on the series you select. Labor in Des Moines typically adds about $10 to $20 per square foot, making it slightly more affordable than national averages. A standard 12×12 deck will run you $2,880-$8,928, while a larger 16×20 deck could cost $6,400-$19,840.
Yes, it’s pricier than wood upfront, but with Iowa’s harsh winters and humid summers, you’ll save thousands on maintenance over the deck’s 25+ year lifespan. The sweet spot? Trex Select offers the best value at around $5-7 per square foot for materials.
Average Trex Decking Cost in Des Moines Metro Area
A complete Trex deck installation in Des Moines typically ranges from $20 to $62 per square foot, with most standard projects falling between $25 and $40 per square foot. We also wrote an article showcasing the best Trex deck ideas to choose from.
The final price depends on several factors, including the Trex series you pick, the size and complexity of your deck, and your site’s specific conditions. Des Moines homeowners typically invest between $8,000 and $25,000 for a standard Trex deck project.
2025 Market Snapshot
- Price Growth: Expect a 3-5% annual increase in material costs.
- Labor Advantage: Des Moines labor rates are 15-20% below coastal markets, offering a significant cost benefit.
- Rising Demand: Requests for composite decking are up 40% compared to traditional wood.
- Timeline: Professional installation typically has a 4-6 week lead time.
Trex Decking Cost Per Square Foot (2025 Breakdown)
The total cost of your deck is made up of material expenses and labor fees. Here’s a breakdown by Trex series and installation type.
Material Costs by Trex Series
- Trex Select: The most affordable option, at $5-6 per square foot. It works for new deck builders and offers classic, limited color options with all the standard composite benefits.
- Trex Select Pro: Our most popular choice, at $6-8 per square foot. This mid-range option offers an expanded color palette and superior fade resistance, making it ideal for Iowa’s sun.
- Trex Transcend: The premium tier, at $8-12 per square foot. Best for high-end projects, this series offers the widest selection of colors, advanced textures, and maximum durability.
Additional Material Costs
Don’t forget to budget for these essential components:
- Hidden Fasteners: $1-2 per square foot
- Railing Systems: $25-45 per linear foot
- Structural Lumber: $2-4 per square foot
- Hardware and Trim: $200-800 per project
Why Professional Installation is a Smart Investment
While DIY can save on labor, professional installation often provides better long-term value.
| Project Component | DIY Reality Check | Professional Installation |
| Labor | 40-80 hours of your time | 3-5 days for a professional crew |
| Cost | You pay for tools, permits, and waste | A flat fee, with no unexpected costs |
| Expertise | Requires carpentry and code knowledge | Guarantees code compliance and proper structural work |
| Warranty | Limited coverage | Full warranty on labor and materials |
Local Labor Advantages in Des Moines:
- Competitive Rates: Des Moines contractors have competitive hourly rates.
- Local Expertise: Local contractors are familiar with Iowa’s building codes and weather-specific installation techniques.
- Supplier Relationships: Established contractors can often get better material pricing.
Real Project Costs: Size Breakdown
Here’s what you can expect to pay for a complete, professionally installed Trex deck in Des Moines, depending on the size.
| Deck Size | Material Cost Range | Total Installed Cost Range |
| Small (12×12 ft) | $720 – $1,730 | $2,360 – $4,800 |
| Medium (16×20 ft) | $1,600 – $3,840 | $5,100 – $10,540 |
| Large (20×24 ft) | $2,400 – $5,760 | $7,600 – $15,760 |
Note: These ranges include all materials, labor, and standard features. Complex designs or premium add-ons will increase the total cost.
Factors That Affect Trex Decking Cost
Several elements can increase or decrease your total project price.
Cost Multipliers (What Drives Prices Up)
- Design Complexity: Multi-level designs, curves, or built-in features (benches, planters, lighting) can add 15-40% to your cost.
- Site Challenges: Sloped terrain, limited access to the site, or the need for structural upgrades can increase labor costs.
- Premium Selections: Picking Trex Transcend over Select, opting for custom colors, or adding composite railings will result in a higher price tag.
Cost Reduction Strategies
- Book Off-Season: Booking your project in the winter can save you 10-15% on installation costs.
- Keep it Simple: A simple, rectangular, ground-level design is the most cost-effective.
- DIY Preparation: Handling tasks like site clearing or old deck demolition can reduce your contractor’s labor hours.
Why Trex is a Perfect Fit for Iowa’s Climate
Iowa’s extreme weather is a major reason why Trex decking is a smart financial decision.
- Winter Performance: Trex decks are engineered to withstand temperatures as low as -20°F without cracking. Unlike wood, they do not suffer from the freeze-thaw cycles that lead to costly repairs.
- Summer Durability: Advanced colorfast technology prevents fading from the intense summer sun. The material resists mold and mildew, which thrive in humid conditions, and it requires no annual staining or sealing.
- Minimal Maintenance: Trex eliminates the need for expensive yearly maintenance. While a wood deck can require $300-$800 in annual staining and repairs, a Trex deck only needs occasional cleaning with soap and water.
This minimal upkeep means Trex typically pays for itself within 5-7 years when compared to the long-term costs of a traditional wood deck.
Frequently Asked Questions
What is the average Trex decking cost in the Des Moines Metro Area?
Complete Trex deck installations typically range from $20 to $62 per square foot. Most projects fall between $25-40 per square foot, depending on materials selected and design complexity.
Is Trex more expensive than traditional wood decking?
Yes, the initial cost is 2-3 times higher than pressure-treated wood. However, the long-term maintenance savings on a Trex deck create greater value, as you avoid annual staining, sealing, and repairs.
Does Trex decking require maintenance?
Trex requires minimal maintenance. An occasional cleaning with soap and water is all that’s needed. There’s no staining, sealing, or refinishing required, saving you hundreds of dollars and countless hours of work.
Can I install Trex decking myself to save money?
DIY installation can save on labor costs, but it requires significant construction experience, specialized tools, and a considerable time investment (40-80 hours). Most Des Moines homeowners find professional installation offers better value, speed, and ensures proper code compliance.
What is the warranty on Trex decking?
Trex offers a 25-year limited residential warranty on its decking products. This covers material defects, as well as splintering, rotting, and structural damage from termites or fungal decay. A separate warranty also covers fade and stain resistance.
Time to Build Your Trex Deck
Deck and Drive Solutions is a local, family-owned business specializing in deck construction for the Des Moines Metro Area. Our experience with high-quality materials and custom designs allows us to build a deck that is perfect for you. We provide high-quality materials and expert craftsmanship. We have a team of trusted professionals.
Ready to start planning your new outdoor space? Contact us today to discuss your project!
