How Much Does It Cost to Build a Deck?
A well-designed deck is an excellent choice for enhancing the quality of life and property value. However, understanding the cost of building a deck is crucial. It involves complex calculations for materials, labor, design, permits, and long-term maintenance. Building a deck typically costs between $4,000 and $12,000. Costs generally range from $30 to $60 per square foot. This piece tells you everything you need to know about how much it really costs to build a deck.
Table of Contents
How Much Does It Cost to Build a Deck?
Stats show that the average cost to have a new deck installed is between $7,300. This price primarily depends on three factors: size, materials, and design complexity. For a more intuitive understanding, we can calculate the cost per square foot.
Deck building usually costs around $30 to $60 per square foot, which includes all the materials and work. This means a simple 10×10-foot ground-level deck could total approximately $4,000 to $6,000.
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What Factors Influence Deck Construction Costs?
The final cost of a deck is affected by multiple factors, primarily including:
- Size: The total cost of a larger deck is higher, but the rate per square foot may go down a little.
- Materials: Prices can range a lot, from cheap pressure-treated lumber to long-lasting and beautiful composite decking.
- Labor: Professional labor fees typically account for 40% to 60% of the total cost, representing the largest portion of the budget.
- Type: Decks that are level with the ground are the least expensive. Decks that are higher up, like those on second stories, need extra support structures and safety rails. Consequently, their cost increases by 30% to 60%.
- Add-ons: Features like stairs, pergolas, built-in seats, and hot tubs can make the total cost go up a lot.
Cost Requirements for Different-Sized Decks
Deck projects are typically priced by square footage. Below are the price ranges for decks of various sizes.
| Deck Size | Square Footage | Average Cost Range* |
| 8’ x 10’ | 80 | $3,200 – $4,800 |
| 10’ x 10’ | 100 | $4000 – $6000 |
| 12’ x 12’ | 144 | $5,760 – $8,640 |
| 10’ x 20’ | 200 | $8,000 – $12,000 |
| 12’ x 20’ | 240 | $9,600 – $14,400 |
| 16’ x 16’ | 256 | $10,240 – $15,360 |
| 14’ x 20’ | 280 | $11,200 – $16,800 |
| 12’ x 24’ | 288 | $11,520 – $17,280 |
| 16’ x 20’ | 320 | $12,800 – $19,200 |
| 20’ x 20’ | 400 | $16,000 – $24,000 |
However, this price range may fluctuate based on the factors mentioned above. For instance, economical materials like pressure-treated lumber tend to be lower in cost. The total cost will go up if you use composite decking materials, high-quality hardwoods, or build a complex structure.
Impact of Different Materials on Cost and Performance
Materials are the most direct factor influencing deck costs. They also determine future maintenance requirements and lifespan. Below is a comparison of common deck materials:
| Material | Cost per sq. ft (installed) | Durability | Maintenance Level | Appearance |
| Pressure-Treated Wood | $15 – $25 | Moderate (10–15 years, with care) | High (staining/sealing) | Traditional wood grain, weathers over time |
| Cedar/Redwood | $20 – $35 | Moderate–High (15–20 years) | Medium (annual sealing) | Warm, natural tones with unique grain |
| Composite | $25 – $40 | Very High (25–50 years) | Very Low (occasional cleaning) | Consistent timber look with realistic grain |
| PVC | $25 – $45 | Exceptional (50+ years) | Minimal (light rinsing) | Realistic wood tones and textures; uniform finish |
| Aluminum | $30 – $55 | Exceptional (50+ years) | Minimal (light rinsing) | Sleek, modern appearance; limited wood-like finishes |
- Pressure-treated Wood Decking: This is the most economical option. Chemically treated to resist weathering, decay, and insect damage to some extent. With regular maintenance, it can last 10-15 years. Its drawbacks include cracking and warping over time, along with higher maintenance requirements.
- Cedar or Redwood Decking: These woods possess natural insect-resistant and rot-resistant properties. They cost more than other woods but have nice grain patterns and are stable in size. Both require annual sealing or staining to maintain appearance and prevent damage.
- Composite Decking: Composite decking is made from a mix of wood fibers and recycled plastic. It looks like real wood grain but doesn’t crack, rot, or get bugs. It offers color stability and requires minimal maintenance. With a lifespan of 25-30 years, it is the mainstream choice in the market.
- PVC Decking: PVC decking is made from 100% plastic, offering another low-maintenance option. It is very resistant to mold, water, and UV rays, which makes it perfect for places near pools or where it rains or is humid.
- Aluminum Decking: Even though they’re not very common, aluminum decks can be a good choice in some situations. They don’t rust, rot, or catch fire. It doesn’t look as nice as wood, but their very long life and low upkeep make them a good long-term investment.
Labor Costs for Building a Deck
Beyond materials, labor costs are a key component of the total expense. Labor typically ranges from $15 to $35 per square foot. This is the fee paid to the specialized contractor.
Labor costs depend on where you live, how much contractors charge, and how complicated the job is. Installing hard-to-work-with hardwoods or designing intricate multi-level decks will increase labor expenses accordingly.
Foundation Preparation Costs
Ground-level decks are typically the most economical deck type. They rest directly on the ground or are supported by simple concrete footings. With this plan, you don’t have to dig a deep foundation or use concrete piers or complicated fasteners. Often, you don’t even need railings.
In contrast, elevated decks are often connected to a home’s second story or built on slopes. To ensure structural safety and stability, deep holes must be excavated, and concrete piers poured. Installation requires metal connectors to securely anchor load-bearing beams to the foundation. Additionally, stairs and essential railings significantly increase costs.
Other Costs
Before finalizing your budget, be sure to factor in the following expenses:
- Building Permit: In most cities, constructing any above-ground deck requires a permit. Fees range from a few hundred to over a thousand dollars.
- Old Deck Removal: If renovating, you’ll need to demolish the existing structure. This typically costs between $600 and $1,000.
- Long-Term Maintenance Costs: Wood needs hundreds of dollars a year and a lot of time to take care of. Composite decking and metal don’t need much upkeep. They just need to be rinsed with soapy water every so often.
- Stairs: $25–$50 per step. A standard staircase with 8–16 steps costs approximately $160–$560.
- Railings: $30–$150 per linear foot, depending on material and design.
- Pavilions: Outdoor structures like pavilions can easily add $2,000 to $10,000 to the cost.
- Outdoor Kitchens and Hot Tubs: These are big projects that need funds, and the load-bearing structure of the deck may need to be strengthened.
How to Save on Deck Construction Costs
Building a deck is an investment, but smart planning can yield significant savings.
- Do-it-yourself: Consider tackling preparatory work yourself. For instance, demolishing an old deck can save labor costs.
- Keep Designs Simple: Complex designs with many levels or polygons waste a lot more materials and take a lot more time. Opt for classic rectangular or square shapes built at ground level. Enhance aesthetics later with soft furnishings and landscaping.
- Get Multiple Quotes: Obtain detailed estimates from several contractors. Carefully compare pricing, materials, and warranty coverage.
- Consider Off-Season Construction: Some contractors offer more competitive rates during the off-season. If the weather permits, schedule construction during this period.
- Prioritize Long-Term Value: Opt for durable, low-maintenance products like composite decking. While the initial investment may be higher, the total cost over time can be significantly lower than wood.
Conclusion
A deck can elevate your outdoor living experience and increase your home’s value. Costs range from $4,000 for a small deck to $12,000 for an expansive outdoor living space, depending on materials, design, and features.
A well-built, properly maintained deck will become one of your home’s most valuable assets. For more information, feel free to contact us. EVODEK offers cost-effective composite decking materials and answers your questions.
FAQ
What is The Average Cost to Build a 16×16-foot Deck?
The average cost to build a 16-foot x 16-foot deck is approximately $12,800. Materials are the primary factor determining the final price. Using materials like pressure-treated lumber or cedar can keep the total cost around $10,000. Opting for composite decking or hardwood will increase the price to $15,000 or more.
How Much Does It Cost to Add Stairs to a Deck?
The cost of adding stairs to a deck depends on the number of steps and the materials used. Typically, each step costs between $25 and $50. For a typical deck entrance with 8 to 16 steps, building stairs usually adds an extra $160 to $560. The total price will increase accordingly for curved stairs or corner stairs with a landing. The stair width and selected railing materials also impact the final price.
Can I Save Money by Building The Deck Myself?
If you possess solid carpentry skills and the necessary tools, DIY deck construction can reduce costs by approximately 50% or more. For single-level ground decks, DIY is feasible. For second-story or elevated decks, hiring a professional contractor is recommended.
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