How Much Does It Cost To Build A Composite Deck

Table of Contents

What is a composite deck?

A composite deck is a type of outdoor flooring option that is becoming increasingly popular among homeowners for its durability, low maintenance, and aesthetic appeal. It is made from a combination of wood fibers, recycled plastics, and a binding agent. This mixture creates a sturdy and long-lasting material that is resistant to rot, splintering, and insect damage.

One of the main advantages of a composite deck is its ability to resist the elements. Unlike traditional wood decks, composite decking is designed to withstand the harsh effects of UV rays, moisture, and temperature fluctuations without warping or fading. This makes it an ideal choice for a deck that is exposed to the sun, rain, and other weather conditions throughout the year.

Another benefit of composite decking is its low maintenance requirements. Unlike wood decks that require regular staining, sealing, and painting, composite decks only need to be cleaned periodically with soap and water to maintain their appearance. This saves you time, effort, and money in the long run.

Composite decks also offer a wide range of design options. They come in a variety of colours, finishes, and textures, allowing you to create a deck that matches your personal style and complements the overall aesthetic of your home. Additionally, composite decking is available in different sizes and profiles, making it versatile for various deck designs.

A composite deck is a durable, low maintenance, and aesthetically pleasing outdoor flooring option. It offers resistance to the elements, requires minimal upkeep, and provides a range of design options. Whether you’re looking to enhance your outdoor living space or increase the value of your home, a composite deck is a worthwhile investment that can provide years of enjoyment.

Advantages of a Composite Deck

A composite deck is a fantastic addition to any outdoor space, offering numerous advantages over traditional wood decks. Here are some key benefits of choosing a composite deck:

1. Durability: Composite decking is extremely durable and can withstand harsh weather conditions, heavy foot traffic, and everyday wear and tear. Unlike wood, composite decking is resistant to rot, warping, and splintering, ensuring that your deck will remain in excellent condition for many years.

2. Low Maintenance: One of the greatest advantages of a composite deck is its low maintenance requirements. Unlike wood decks that require regular staining, painting, and sealing, composite decking only needs occasional cleaning with soap and water to keep it looking its best. This means less time spent on maintenance and more time enjoying your outdoor space.

3. Longevity: Investing in a composite deck ensures long-term enjoyment. With proper installation and maintenance, a composite deck can last for decades without losing its beauty or structural integrity. This makes it a cost-effective option in the long run, as you won’t need to worry about replacing or repairing your deck frequently.

4. Variety of Design Options: Composite decking offers a wide range of design options to suit your personal style and preferences. Whether you prefer a classic, natural wood look or a contemporary, sleek design, there’s a composite deck option that will complement your outdoor space perfectly. With a variety of colours, textures, and finishes available, you can customize your deck to create a unique and inviting atmosphere.

5. Eco-Friendly: Composite decking is an environmentally friendly choice. It is made from a combination of recycled materials, such as wood fibres and plastic, reducing the need for harvesting new timber. By choosing a composite deck, you are not only enhancing the beauty of your outdoor space but also contributing to the preservation of our natural resources.

A composite deck offers several advantages that make it a worthwhile investment for your outdoor space. Its durability, low maintenance requirements, longevity, design options, and eco-friendliness make it a superior choice compared to traditional wood decking. Experience the benefits of a composite deck and enjoy years of outdoor relaxation and entertainment.

Factors that Affect the Cost of Building a Composite Deck

When it comes to building a composite deck, there are several factors that can influence the overall cost. Understanding these factors can help you plan your budget and make informed decisions about your decking project. Here are some key considerations to keep in mind:

  1. Size of the Deck: The size of your deck is one of the primary factors that affect the cost. Naturally, a larger deck will require more materials and labour, resulting in a higher overall cost. Consider how you plan to use your deck and determine the appropriate size based on your needs and available space.
  2. Design Complexity: The design complexity of your deck can also impact the cost. Intricate designs or unique features may require additional labour and materials, increasing the overall expense. Keep in mind that while elaborate designs can enhance the aesthetics of your deck, they may come with a higher price tag.
  3. Decking Material: While composite decking itself is a cost-effective choice in the long run, the specific type and quality of decking material can affect the upfront cost. Some composite decking brands offer different lines with varying price points, allowing you to choose the one that fits your budget without compromising on quality.
  4. Foundation and Substructure: The cost of the foundation and substructure is an important consideration. A solid and well-built foundation is crucial for the longevity and stability of your deck. Factors such as soil conditions, slope, and accessibility can affect the complexity and cost of the foundation.
  5. Additional Features: Incorporating additional features into your deck, such as railings, stairs, pergolas, or built-in seating, can increase the overall cost. While these features can add functionality and visual appeal to your deck, they should be considered when calculating your budget.
  6. Labour Costs: The cost of labour will vary depending on your location, the complexity of the project, and the experience of the decking professionals you hire. Obtaining multiple quotes from reputable contractors can help you ensure that you are getting a fair price for the required labour.

It’s important to note that these factors are interconnected and can influence each other. Making informed decisions about the size, design, materials, and additional features of your composite deck can help you create a budget that aligns with your desired outcome. By considering these factors, you can ensure that you have a clear understanding of the costs involved in building a composite deck.

Materials Required for Building a Composite Deck

Now that you understand the factors that can affect the cost of building a composite deck, let’s dive into the materials required for your project. Choosing the right materials is crucial not only for the durability and longevity of your deck but also for its overall aesthetic appeal.

  1. Decking Boards: The decking boards are the main component of your composite deck. These boards are typically made from a combination of wood fibers and recycled plastic. They come in a variety of colours, textures, and lengths, allowing you to create a deck that suits your personal style.
  2. Fasteners: To securely attach the decking boards to the substructure, you’ll need the appropriate fasteners. Choosing the right type of fastener is important, as it affects both the aesthetics and the structural integrity of your deck. Hidden fastening systems are a popular option as they provide a seamless look and minimize the risk of moisture damage.
  3. Substructure Components: The substructure is the framework that supports the decking boards. It is usually made of pressure-treated lumber or steel. The substructure components include beams, joists, and posts. These components are essential for ensuring the stability and strength of your deck.
  4. Railing Systems: Depending on the design and safety requirements of your deck, you may need to install a railing system. Composite railing systems are available in a wide range of styles and colours to complement your deck’s aesthetics. Remember to check your local building codes for any specific requirements regarding railing height and spacing.
  5. Finishings (Optional): To complete the look of your deck, you may want to consider additional finishing touches. This can include items such as post caps, decorative lighting, and stair treads. These finishing elements can enhance the visual appeal and functionality of your deck.

By understanding the materials required for building a composite deck, you can better plan your budget and make informed decisions about your project. Keep in mind that the quality of the materials you choose will impact the overall cost and longevity of your deck. It’s important to invest in high-quality materials that will withstand the test of time and provide years of enjoyment.

Labour costs for building a Composite Deck

When it comes to building a composite deck, labour costs are an important aspect to consider. While the cost of materials is relatively straightforward, the expenses associated with hiring professionals to construct the deck can vary. Understanding the factors that influence labour costs will help you plan your budget accordingly.

The complexity of the deck design plays a significant role in determining the labour costs. Intricate designs that require precise measurements and intricate cuts may require more time and, consequently, increase the labour costs. Conversely, if you opt for a simpler design with straight lines and fewer custom features, it may result in lower labour costs.

The size of the deck also impacts the labour costs. A larger deck will require more time and effort to construct, leading to higher labour costs. On the other hand, a smaller deck will generally have lower labour costs.

In addition to the design and size of the deck, the experience and expertise of the professionals you hire will also influence the labour costs. Experienced and reputable contractors may charge higher rates, but their expertise can result in a higher quality and more efficient construction process. It’s important to find a balance between cost and expertise when choosing a contractor.

The location of your project can also affect the labour costs. Labour rates can vary depending on the region and local market conditions. For example, areas with a high cost of living or where construction services are in high demand might have higher labour costs compared to areas with a lower cost of living or less demand for construction services.

Lastly, it’s essential to consider any additional tasks that might be required during the deck construction process. For instance, if there are existing structures or landscaping that need to be removed or if the ground needs to be levelled or prepared, these tasks may increase the labour costs.

Keep in mind that labour costs are just one component of the total cost of building a composite deck. It’s essential to factor in other expenses such as materials, permits, and any necessary additional features. By taking these factors into account, you can make informed decisions about your decking project and ensure that you have a realistic budget in place.

Additional Costs to Consider

When planning the budget for your composite deck project, it’s important to take into account any additional costs that may arise. Here are some factors to consider when estimating the overall cost of your deck:

  1. Permits and Inspections: Depending on where you live, you may need to obtain permits and have inspections conducted during the construction process. These fees can add to the overall cost of your project, so be sure to factor them in.
  2. Railings and Balusters: If you’re planning to include railings and balusters on your deck, keep in mind that these additional features come with their own costs. The type of material, style, and installation complexity will all impact the overall price.
  3. Stairs: If your deck requires stairs, the construction and materials needed will add to the total cost. The number of steps, the style of the stairs, and the materials used will all affect the final price.
  4. Built-in Features: Adding built-in features like benches, planters, or storage can enhance the functionality and aesthetics of your deck. However, these extras come at an additional cost. Consider your needs and desires when planning for these features.
  5. Lighting: Outdoor lighting can create a welcoming and functional atmosphere on your deck. From post cap lights to under-rail lights, the price of lighting fixtures varies. Take into account the cost of the lights themselves, as well as any installation fees.
  6. Finishing Touches: Don’t forget about the little details that can make a big difference in the overall appearance and usability of your deck. Consider the cost of features such as skirting, trim, and decorative elements when budgeting for your project.

Keep in mind that these additional costs may vary depending on the size and complexity of your deck, as well as the materials and features you choose. It’s important to carefully consider these factors and include them in your budget to ensure that you are prepared for the total cost of your composite deck project.

Remember, investing in high-quality materials and professional installation can save you money in the long run by providing a durable and long-lasting deck.


When it comes to building a composite deck, there are several additional costs to consider that can impact your overall budget. Permits and inspections, railings and balusters, stairs, built-in features, lighting, and finishing touches all play a role in determining the final cost of your project. It’s important to carefully evaluate these factors and include them in your budget from the beginning.

Investing in high-quality materials and professional installation is crucial for creating a durable and long-lasting deck. While it may require a higher upfront cost, it will save you money in the long run by reducing the need for repairs and maintenance.

By understanding the full scope of the project and considering all the necessary components, you can ensure that your composite deck meets your expectations and provides you with a beautiful outdoor space to enjoy for years to come. Remember to choose reputable suppliers and contractors who can guide you through the process and deliver a deck that exceeds your expectations.

Frequently Asked Questions

Q: What additional costs should I consider when planning a composite deck project?

A: When planning a composite deck project, there are several additional costs to consider. These include permits and inspections, railings and balusters, stairs, built-in features, lighting, and finishing touches. These factors can impact the overall cost of the project and should be included in your budget.

Q: Why do I need permits and inspections for my deck project?

A: Permits and inspections are necessary for your deck project to ensure compliance with local building codes and regulations. They help ensure that your deck is safe and structurally sound. Getting the required permits and scheduling inspections may have associated costs, so it’s important to factor these into your budget.

Q: Are railings and balusters necessary for my deck?

A: Yes, railings and balusters are necessary for safety reasons. They prevent falls and provide support. The cost of railings and balusters can vary depending on the materials and design chosen. It’s important to include these costs in your budget to ensure the safety and aesthetics of your deck.

Q: Do I need stairs for my deck?

A: If your deck is elevated or you want easy access to your yard, stairs are necessary. The cost of stairs will depend on the materials, design, and number of steps required. It’s important to consider this additional cost when planning your deck project.

Q: What are built-in features for decks?

A: Built-in features for decks refer to additional elements such as seating, planters, and storage. These features can enhance the functionality and aesthetics of your deck. The cost of built-in features will depend on the materials and complexity of the design. Including these costs in your budget will help you achieve the desired functionality and style for your deck.

Q: Why should I consider lighting for my deck?

A: Lighting is essential for safety, security, and creating ambiance on your deck. Whether it’s installing overhead lights, step lights, or post lights, including lighting in your budget will enhance the usability and enjoyment of your deck, especially during the evenings.

Q: Why are finishing touches important for a deck project?

A: Finishing touches such as stain, sealant, and trim add the final touches of protection and aesthetics to your deck. Stain and sealant help protect the deck from weathering and extend its lifespan. Including these finishing touches in your budget will ensure your deck remains durable and visually appealing for years to come.

Q: How can I ensure a durable and long-lasting deck?

A: To ensure a durable and long-lasting deck, it’s crucial to invest in high-quality materials and professional installation. Choosing composite decking with excellent weather resistance and low maintenance will help prolong the lifespan of your deck. Hiring experienced professionals for the installation will ensure a proper and sturdy construction that can withstand the test of time.

About The Author
Picture of John Johnson
John Johnson

Meet John, a seasoned carpenter with a passion for transforming wood into works of art. With over two decades of hands-on experience, he crafts not just furniture but stories within each meticulously cut piece. His keen eye for detail and commitment to quality ensure that every project, from custom cabinets to intricate woodwork, reflects both precision and artistry. John's workshop is a haven of creativity, where each saw's hum and every chisel's tap resonate with his dedication to craftsmanship. Whether it's restoring a vintage piece or creating a modern masterpiece, John brings not just skill but a genuine love for the craft to every endeavor.

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