Ultimate Guide To Cost Of Kwila Decking NZ

Welcome to our comprehensive guide on understanding the cost of Kwila decking in New Zealand. Kwila, also known as Merbau, is renowned for its rich, reddish-brown hue and exceptional durability, making it a popular choice for decking projects across the country. In this post, we aim to shed light on the various factors that influence the cost of Kwila decking, from material quality and deck size to installation and maintenance. Whether you’re a homeowner looking to enhance your outdoor space or a DIY enthusiast exploring decking options, this guide will provide you with all the essential information you need to make an informed decision. Dive in to discover why Kwila decking is a premium yet worthwhile investment for your home.

On average, the cost of Kwila decking in New Zealand ranges from $100 to $150 per square meter for the materials alone. Additionally, professional installation fees typically add another $50 to $100 per square meter. It’s also important to factor in maintenance costs, such as sealing and cleaning, to ensure the longevity and appearance of your Kwila deck.

What Is Kwila Decking?

Definition and Origin

Kwila, also known as Merbau, is a tropical hardwood native to Southeast Asia and the Pacific regions, including countries like Indonesia, Malaysia, and Papua New Guinea. It is harvested from large, evergreen trees that thrive in these tropical climates. Known for its impressive density and strength, Kwila has become a sought-after material for a variety of construction and woodworking projects, with decking being one of its most popular applications.


Kwila wood is distinguished by several notable characteristics that make it ideal for outdoor use:

Durability: One of the primary reasons Kwila is highly valued is its exceptional durability. The wood is naturally resistant to termites, fungi, and other pests, which significantly reduces the need for chemical treatments and maintenance.

Color: Freshly cut Kwila wood showcases a rich reddish-brown color that deepens over time to a dark, lustrous brown. This natural aging process adds to the wood’s appeal, giving decks a timeless and sophisticated look.

Grain Pattern: Kwila’s grain pattern is another feature that sets it apart. It has an interlocked grain with a slightly coarse texture, which adds visual interest and a tactile quality to decking surfaces. The wood’s grain pattern also contributes to its slip-resistant properties, making it safer for outdoor environments.


Kwila decking offers numerous benefits that make it a preferred choice for homeowners and builders alike:

Aesthetic Appeal: The rich, warm hues of Kwila wood bring a touch of elegance to any outdoor space. Its natural beauty enhances the overall aesthetic of decks, patios, and other outdoor structures, creating inviting and visually pleasing environments.

Longevity: Kwila’s robustness means that it can withstand harsh weather conditions, heavy foot traffic, and the test of time. Properly maintained Kwila decks can last for decades, providing excellent value for the investment.

Low Maintenance: Compared to other decking materials, Kwila requires relatively low maintenance. Its natural resistance to decay and pests means that homeowners can enjoy their decks with minimal upkeep. Occasional cleaning and oiling are usually sufficient to maintain the wood’s appearance and integrity.

Environmental Impact: With responsible sourcing and sustainable forestry practices, Kwila can be an environmentally friendly option. Choosing certified Kwila wood ensures that it comes from managed forests that prioritize conservation and reforestation efforts.

In summary, Kwila decking combines strength, beauty, and durability, making it an outstanding choice for those looking to enhance their outdoor living spaces. Whether for a residential backyard or a commercial project, Kwila wood offers a blend of aesthetic and practical benefits that are hard to match.

Factors Influencing The Cost Of Kwila Decking

When planning a Kwila decking project, it’s crucial to understand the various factors that can influence the overall cost. Let’s dive into the specifics:

Material Quality

The quality of the Kwila wood you choose significantly impacts the price. Kwila, known for its durability and rich color, comes in different grades. High-grade Kwila, often free of knots and defects, commands a higher price due to its superior quality and longer lifespan. Lower-grade Kwila, while still a good option, may have more imperfections and may not last as long. Investing in premium Kwila can save you money in the long run as it requires less maintenance and replacement.

Deck Size and Design

The size and complexity of your deck play a crucial role in determining the cost. Larger decks naturally require more materials and labor, increasing the overall expense. Additionally, intricate designs with multiple levels, curves, or custom features can add to the cost. Simple rectangular decks are generally more budget-friendly compared to elaborate structures. When planning, consider how the deck’s shape and size align with your budget and needs.


Installation costs can vary widely depending on whether you choose to hire professionals or undertake the project yourself. Professional installation ensures the deck is built to code and typically includes a warranty, adding to peace of mind but also to the expense. DIY installation can save on labor costs, but it requires a good deal of time, skill, and the right tools. Mistakes in DIY projects can lead to additional costs down the line, so it’s essential to weigh the pros and cons carefully.


Your geographical location within New Zealand can also affect the cost of Kwila decking. In urban areas, where demand for decking materials and skilled labor is high, prices might be steeper. Conversely, in rural areas, material costs might be lower, but you could face higher transportation fees. Additionally, weather conditions in different regions can impact the longevity of the deck, potentially influencing maintenance costs over time.

Additional Features

Adding features like railings, stairs, and built-in seating can enhance the functionality and aesthetic appeal of your deck but will also add to the overall cost. Railings, essential for safety, come in various materials and styles, each with its own price point. Stairs are necessary for decks that are elevated and can vary in complexity. Built-in seating is a fantastic feature for entertaining but requires additional materials and labor. When budgeting, consider these extras and how they fit into your overall vision for the deck.

Understanding these factors can help you make informed decisions and plan a Kwila decking project that fits your budget while meeting your expectations.

Average Costs Of Kwila Decking In NZ

Kwila decking is a popular choice in New Zealand due to its durability, rich color, and natural resistance to the elements. However, understanding the costs involved in installing and maintaining Kwila decking is crucial for budgeting purposes. In this section, we will break down the average costs associated with Kwila decking in NZ, covering material costs, installation fees, and ongoing maintenance expenses.

Material Costs

When it comes to Kwila decking, the cost of the material is one of the first considerations. Kwila, also known as Merbau, is a premium hardwood, which means it tends to be on the higher end of the price spectrum. On average, you can expect to pay between NZD $120 to $150 per square meter for Kwila decking boards. This price range can vary depending on factors such as the quality of the timber, the supplier, and any additional treatments the wood has undergone to enhance its durability and appearance.

Installation Costs

Professional installation is a key component of any decking project. While it might be tempting to take on the project yourself, hiring a professional ensures that the job is done correctly and safely. In New Zealand, the cost for professional installation of Kwila decking typically ranges from NZD $70 to $120 per square meter. This estimate can vary based on the complexity of the deck design, site preparation needs, and labor rates in your area. It’s always a good idea to get multiple quotes from reputable contractors to ensure you’re getting a fair price.

Maintenance Costs

Maintaining Kwila decking is essential to preserve its beauty and extend its lifespan. Unlike some other types of wood, Kwila requires regular maintenance due to its high natural oil content, which can cause tannin bleed if not properly sealed. Here’s a breakdown of the ongoing maintenance costs you can expect:

Sealing: To protect your Kwila deck from the elements and reduce tannin bleed, it’s recommended to seal the deck annually. The cost of a high-quality decking sealant can range from NZD $50 to $100 per liter, and a typical deck might require 2-3 liters depending on its size.

Cleaning: Regular cleaning is essential to prevent the buildup of dirt and grime. Using a specialized deck cleaner, which costs about NZD $30 to $60 per bottle, will help keep your deck looking its best. You may need to clean your deck every few months, depending on its exposure to the elements.

Repairs and Replacements: Over time, even the best-maintained decks might need some repairs. The cost for minor repairs, such as replacing a few boards, can range from NZD $100 to $300. More extensive repairs might require a professional assessment and could be more costly.

In conclusion, while Kwila decking comes with higher initial costs, its durability and aesthetic appeal make it a worthwhile investment. By budgeting for material, installation, and maintenance costs, you can enjoy the beauty and longevity of a Kwila deck in your New Zealand home for many years to come.

Comparing Kwila To Other Decking Materials

Choosing the right decking material is crucial for creating an outdoor space that is both beautiful and durable. In this section, we’ll compare Kwila to other popular decking materials, including Pine, composite decking, and other hardwoods like Teak and Jarrah. We’ll explore costs, longevity, and maintenance requirements to help you make an informed decision.

Kwila vs. Pine

Cost: Pine is generally the most affordable decking option available. It is widely used in New Zealand due to its low cost and availability. Kwila, on the other hand, is more expensive but offers a premium look and feel. The initial investment in Kwila is higher, but many homeowners find the extra cost worthwhile for its superior aesthetics and durability.

Longevity: When it comes to longevity, Kwila outperforms Pine. Pine, especially when untreated, is susceptible to rot, insects, and weathering, which can significantly reduce its lifespan. Treated Pine can last longer, but it still doesn’t match the natural resilience of Kwila. Kwila is a tropical hardwood known for its durability and resistance to decay, making it a long-lasting choice for decking.

Maintenance: Pine requires regular maintenance to prevent damage and extend its lifespan. This includes staining, sealing, and sometimes treating for pests. Kwila, although low-maintenance, still benefits from occasional oiling to maintain its rich color and prevent greying. However, it does not require as much upkeep as Pine, making it a more convenient option for homeowners looking for a beautiful, hassle-free deck.

Kwila vs. Composite Decking

Initial Cost: Composite decking is made from a blend of wood fibers and plastic, and its price varies depending on the brand and quality. Generally, the initial cost of composite decking is comparable to or slightly higher than Kwila. While composite decking can be a significant upfront investment, it offers various benefits that might justify the cost for some homeowners.

Lifespan: Both Kwila and composite decking are known for their long lifespans. Composite decking is engineered to resist rot, decay, and insect damage, making it a durable choice for outdoor spaces. However, Kwila’s natural durability and resistance to the elements give it a similar, if not longer, lifespan. With proper care, a Kwila deck can last for decades, maintaining its structural integrity and aesthetic appeal.

Upkeep: One of the biggest selling points of composite decking is its low maintenance requirements. Unlike natural wood, composite decking does not need to be stained, sealed, or treated. It only requires occasional cleaning with soap and water. Kwila, while more low-maintenance than other natural woods, still needs periodic oiling to keep its color and prevent surface cracks. The choice between Kwila and composite decking often comes down to personal preference and how much time you’re willing to invest in maintenance.

Kwila vs. Other Hardwoods

Price: When comparing Kwila to other hardwoods like Teak and Jarrah, price is a significant factor. Teak is one of the most expensive decking materials due to its exceptional quality and longevity. Jarrah is also on the higher end of the price spectrum, though generally less expensive than Teak. Kwila, while not cheap, is often more affordable than Teak and Jarrah, making it a popular choice for those seeking high-quality hardwood without the top-tier price.

Durability: All three hardwoods—Kwila, Teak, and Jarrah—are known for their durability and resistance to the elements. Teak is often considered the gold standard for outdoor wood due to its natural oils that provide outstanding protection against moisture and pests. Jarrah is also extremely hard and durable, making it a great option for decking. Kwila holds its own in this comparison, offering excellent durability and resistance to rot and insects. While it may not have the same level of natural oil as Teak, its performance in harsh conditions is impressive.

Maintenance: The maintenance needs of Kwila, Teak, and Jarrah are relatively similar. All three benefit from regular oiling to preserve their color and prevent weathering. Teak is often left to weather to a silver-grey patina, which some homeowners prefer. Jarrah and Kwila can also weather over time, but regular maintenance can keep their rich hues vibrant. Ultimately, the choice among these hardwoods may come down to aesthetic preferences and budget considerations.

In summary, Kwila offers a compelling balance of cost, durability, and maintenance ease compared to other decking materials. Whether you prioritize affordability, longevity, or minimal upkeep, understanding these comparisons can help you select the best material for your outdoor decking project.

Tips For Saving On Kwila Decking

When considering the installation of Kwila decking, it’s important to explore various ways to reduce costs without compromising on quality. Here are some practical tips to help you save money on your Kwila decking project:

Seasonal Sales

One effective strategy to save money on Kwila decking is to take advantage of seasonal sales and promotions. Retailers often offer significant discounts during certain times of the year, particularly during off-peak seasons. For instance, you might find great deals during the winter months when demand for outdoor decking materials is lower. Keep an eye on advertisements, sign up for newsletters from decking suppliers, and check out home improvement stores’ websites regularly to catch these seasonal bargains.

Bulk Buying

Purchasing materials in bulk can also lead to substantial savings. If you have a large decking project or if you can coordinate with friends or neighbors who also need decking materials, buying in bulk can reduce the cost per unit. Many suppliers offer discounts for larger orders, so it’s worth inquiring about bulk pricing. Additionally, bulk buying can sometimes save on shipping or delivery costs, further reducing your overall expenses.

DIY Installation

Considering a DIY approach for your Kwila decking installation is another excellent way to cut costs. Labor can be one of the most expensive parts of a decking project. By installing the decking yourself, you can save a significant amount of money. However, it’s crucial to be realistic about your skills and the scope of the project. Start by researching DIY tutorials and guides specific to Kwila decking, and gather all necessary tools and materials before you begin. Remember, taking the time to properly prepare and educate yourself can prevent costly mistakes down the line.

Supplier Comparison

Lastly, don’t underestimate the importance of comparing quotes from multiple suppliers. Prices for Kwila decking can vary widely between suppliers, so it’s beneficial to shop around. Get detailed quotes that include all costs, such as delivery and any additional services. Comparing these quotes can help you identify the best deal and ensure you’re not overpaying. Additionally, some suppliers might offer price matching or additional discounts if they know you’re considering other options, so don’t hesitate to mention that you’re shopping around.

Real-Life Examples And Testimonials

Case Studies: Completed Kwila Decking Projects

Sharing real-life examples and case studies is a powerful way to illustrate the value of Kwila decking. Here, we highlight several completed projects, giving potential customers a clear picture of what they can expect in terms of cost, quality, and aesthetic appeal.

Case Study 1: Coastal Retreat in Auckland

In Auckland, a homeowner decided to upgrade their outdoor space with Kwila decking. The project involved replacing an old, worn-out deck with a new, robust Kwila deck, perfect for the coastal climate. The total cost for this project, including materials and labor, was approximately NZD 15,000. The homeowner was thrilled with the outcome, noting the deck’s durability and the rich, warm tones of the Kwila wood, which complemented their seaside home beautifully.

Case Study 2: Family Home in Wellington

A family in Wellington wanted to create a safe and stylish outdoor area for their children to play. They chose Kwila decking for its strength and resistance to wear and tear. The project included a 50-square-meter deck, with an investment of around NZD 12,000. This cost covered the Kwila timber, installation, and a protective finish. The family appreciated the smooth, splinter-free surface, which provided a safe environment for their kids.

Case Study 3: Modern Apartment Balcony in Christchurch

In Christchurch, an apartment owner sought to enhance their balcony with Kwila decking, aiming for a modern, sophisticated look. The project was relatively small, covering 20 square meters, and cost approximately NZD 5,000. The result was a stunning, low-maintenance outdoor space that significantly increased the property’s appeal. The homeowner praised the Kwila wood for its natural beauty and ease of maintenance.

Customer Testimonials: Satisfaction and Experiences

Including genuine testimonials from homeowners who have chosen Kwila decking can greatly enhance trust and provide potential customers with confidence in their decision.

Testimonial 1:

“We decided to go with Kwila decking for our backyard renovation, and we couldn’t be happier. The rich color of the wood and its durability have transformed our outdoor space. The investment was well worth it, and we’ve received countless compliments from friends and family.” – Sarah, Auckland

Testimonial 2:

“Installing Kwila decking was the best decision we made for our home. Not only does it look fantastic, but it’s also incredibly sturdy. Our kids love playing on it, and we have peace of mind knowing it’s safe and durable. Highly recommend it to anyone considering a new deck.”– Mark and Emma, Wellington

Testimonial 3:

“The Kwila decking on our balcony has made a world of difference. It’s added a touch of elegance and is so easy to maintain. We’ve been able to enjoy more outdoor time without worrying about constant upkeep. Absolutely love it!”– Jessica, Christchurch

These case studies and testimonials highlight the versatility, durability, and aesthetic appeal of Kwila decking, providing potential customers with a well-rounded understanding of its benefits. Whether for a coastal retreat, a family home, or a modern apartment, Kwila decking proves to be a valuable investment that enhances any outdoor space.

FAQs: About Cost Of Kwila Decking NZ

What is Kwila decking?

Kwila decking, also known as Merbau, is a popular hardwood choice for outdoor decking. It is valued for its durability, rich reddish-brown color, and resistance to decay and insects.

How much does Kwila decking cost in New Zealand?

On average, Kwila decking materials cost between $100 to $150 per square meter. Professional installation typically adds another $50 to $100 per square meter. Maintenance costs should also be considered for long-term upkeep.

Why is Kwila decking more expensive than other types of decking?

Kwila is a premium hardwood known for its durability, aesthetic appeal, and long lifespan, which justifies its higher price compared to softwoods like pine or even some composite materials.

What factors influence the cost of Kwila decking?

The cost is influenced by the quality of the wood, the size and complexity of the deck, installation fees, and additional features like railings or built-in seating. Geographical location within New Zealand can also impact the overall cost.

Can I install Kwila decking myself?

Yes, DIY installation is possible and can save on labor costs. However, professional installation is recommended for those unfamiliar with decking construction to ensure proper installation and longevity.

How do I maintain my Kwila deck?

Regular maintenance includes cleaning the deck to remove dirt and debris, sealing the wood to protect against moisture and UV damage, and reapplying oil or stain as needed to maintain its color and appearance.

How long does Kwila decking last?

With proper maintenance, Kwila decking can last for decades. Its natural resistance to rot and insects, combined with regular sealing and care, ensures its longevity.

Is Kwila decking environmentally friendly?

Kwila wood should be sourced from certified, sustainable forests to ensure it is environmentally friendly. It’s important to check for certification from organizations like the Forest Stewardship Council (FSC) when purchasing Kwila decking.

How does Kwila compare to other decking materials?

Kwila is more durable and visually appealing than many softwoods like pine. Compared to composite decking, Kwila offers a natural look and feel but requires more maintenance. It is also more resistant to wear than many other hardwoods.

Where can I buy Kwila decking in New Zealand?

Kwila decking can be purchased from local suppliers, hardware stores, and specialized decking retailers in New Zealand. Online retailers also offer Kwila decking, often with options for custom sizes and bulk purchases.


To wrap up, we’ve explored the key aspects of Kwila decking in New Zealand, covering its durability, aesthetic appeal, and the factors that influence its cost. Kwila’s long-lasting nature and rich, warm hues make it a popular choice for homeowners seeking a blend of beauty and functionality in their outdoor spaces. While the cost of Kwila decking can be higher than some other materials, its resilience and low maintenance requirements often make it a worthwhile investment. If you’re considering Kwila for your next decking project, it’s a great idea to get a quote from a trusted supplier to understand the costs better. Don’t hesitate to reach out for more information or to explore other decking options that might suit your needs.

Related Posts