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When homeowners start thinking about enhancing their outdoor living space, one of the most popular additions is a deck. A deck not only expands usable square footage but also boosts a home’s resale value, creates a perfect space for entertaining, and adds beauty to the property. But before jumping into the project, the big question arises: How much does it actually cost to build a deck?
The short answer is that building a deck can cost anywhere from $4,000 to $25,000 or more, depending on various factors. On average, most homeowners spend between $8,000 and $12,000. This wide price range exists because no two decks are exactly the same—your choices in materials, size, design complexity, and whether you hire a professional or DIY will all have a major impact on the final bill.
In this guide, we’ll break down the factors that influence deck-building costs, compare popular materials, and explain what to expect when budgeting your project.
The Main Factors That Influence Deck Cost
1. Size of the Deck
The most obvious factor affecting deck cost is size. A larger deck requires more materials, more labor, and more time to build. For example:
A small, basic 10x10 deck may cost around $4,000 to $6,000 using pressure-treated wood.
A medium 16x20 deck built with composite materials could easily fall in the $10,000 to $15,000 range.
A large, multi-level deck with premium hardwoods or custom features can exceed $25,000.
As a rule of thumb, expect costs to rise exponentially as you increase the size and complexity of the space.
2. Choice of Materials
Materials are one of the biggest cost drivers in any deck project. Homeowners have several options, each with unique pros, cons, and price points.
Wood Options
Pressure-Treated Lumber: The most budget-friendly option, pressure-treated wood resists rot and insects. However, it requires regular maintenance such as staining or sealing.


Cedar or Redwood: These naturally resistant woods cost more than pressure-treated lumber but offer a beautiful finish and moderate durability.


Exotic Hardwoods (like Ipe): These materials are incredibly strong and can last decades with proper care. The downside is their premium cost and sometimes difficult installation process.


Composite Materials
Composite decking is a blend of recycled wood fibers and plastic. While more expensive than wood, composites have skyrocketed in popularity due to their durability, resistance to weathering, and minimal maintenance requirements. You don’t need to stain, sand, or paint them—simply clean occasionally and enjoy. The upfront cost may be higher, but long-term savings in maintenance make composites an attractive option.
3. Labor Costs
Labor is another significant portion of the deck budget. If you’re handy with tools and willing to DIY, you could save thousands. But building a deck is complex, requiring structural knowledge, permits, and safety compliance. For most homeowners, hiring a professional is the best choice.
Professional contractors bring expertise, ensure everything is built to code, and often complete projects much faster. Labor can account for 30% to 50% of the total deck cost, depending on complexity and local market rates.
4. Design Complexity
A basic, single-level rectangular deck will always be cheaper than an elaborate, multi-level design. Some design elements that can increase costs include:
Built-in seating and benches
Decorative railings or glass panels
Pergolas or shade structures
Stairs leading to multiple levels
Integrated lighting or electrical work
Each added feature increases labor and materials, raising the total investment.
5. Site Factors
Where your deck is built can have a big impact on price. Sloped yards may require additional support structures, while uneven or rocky soil could add excavation costs. Other factors include:
Local labor rates: Costs vary widely across regions.
Permit fees: Some municipalities charge significant amounts for deck permits.
Inspection requirements: Meeting building codes can require additional adjustments during construction.


Average Costs by Material
To provide a clearer picture, here’s a breakdown of average costs per square foot by material:
Pressure-Treated Wood: $15–$25 per sq. ft.
Cedar/Redwood: $25–$35 per sq. ft.
Composite Decking: $30–$60 per sq. ft.
Exotic Hardwoods (Ipe, Mahogany): $40–$70 per sq. ft.
These numbers include materials and basic installation but not extras like railings, stairs, or custom features.
DIY vs. Professional Installation
Many homeowners wonder whether they should build a deck themselves or hire professionals. Here are the pros and cons:
DIY Advantages
Saves money on labor.
Provides a sense of accomplishment.
Allows for flexible timing.
DIY Disadvantages
Requires significant time and skill.
Mistakes can lead to costly repairs.
Safety and code compliance may be issues.
Professional Advantages
Faster and more efficient construction.
Expert knowledge ensures safety and compliance.
Access to better tools and materials.
Usually comes with a warranty or guarantee.


For most homeowners, especially those building larger or more complex decks, hiring professionals is the smart investment.
Additional Costs to Consider
Beyond the basics, other expenses can sneak into your deck project:
Railings: Metal, glass, or decorative railing systems can significantly increase costs.
Lighting: Built-in lighting creates ambiance but requires electrical work.
Furniture: Don’t forget to budget for tables, chairs, or outdoor décor.
Maintenance: Wood decks require staining, sealing, or painting every few years.
Repairs: Factor in potential long-term repair costs depending on your material choice.
How to Budget Smartly for a Deck
If you want the best deck for your money, planning is essential. Here are some tips:
Set a realistic budget: Determine how much you’re comfortable spending and work backward from there.
Prioritize features: Decide which elements are must-haves and which can wait.
Get multiple quotes: Always compare at least 2–3 professional estimates.
Plan for future maintenance: A lower upfront cost (like wood) may mean higher long-term expenses compared to composite.
Consider long-term value: A deck isn’t just an expense—it’s an investment in your home’s appeal and resale potential.
Why a Professional Consultation Matters
Online calculators and rough averages are helpful, but nothing replaces a personalized consultation with a local deck builder. Professionals can:
Visit your property and evaluate site-specific challenges.
Provide accurate estimates based on your chosen materials and design.
Offer creative solutions you may not have considered.
Ensure your project complies with local codes and safety requirements.
Without this step, it’s nearly impossible to know exactly how much your dream deck will cost.
Conclusion: Build the Deck of Your Dreams
A new deck is one of the best ways to extend your living space and enjoy the outdoors right from your own backyard. While costs can vary widely—from $4,000 to $25,000 or more—understanding the key factors like size, materials, labor, and design complexity will help you make informed decisions.
If you’re ready to start planning your deck project, the smartest step is to connect with experienced professionals who can provide a tailored estimate. At Salt Lake City Decks, we specialize in designing and building beautiful, durable decks that fit your lifestyle and budget. Whether you’re considering wood, composite, or custom designs, we’ll guide you through every step of the process.
Call us today at +1 385-364-1349 to schedule your consultation and start building the deck you’ve always wanted.