Is it Cheaper to Maintain a Hardwood Deck Compared to a Softwood Deck in the Long Run?

Decoding Hardwood and Softwood Decking: A Financial Perspective

The Basics of Timber Decking Choices

When exploring decking Auckland options, homeowners are frequently met with the pivotal choice between hardwood and softwood materials. Both timber categories boast distinct characteristics, advantages, and drawbacks, shaping their long-term cost-efficiency. Let’s delve into the specifics.

Hardwood Decking Choices
Hardwoods are celebrated for their innate strength, courtesy of their dense composition. These woods, extracted from deciduous trees, exhibit an elevated resistance against natural wear, tear, and elemental impact, thus promising enhanced durability.

  • Oak: A perennial favourite, oak decking boasts a beautiful grain and is exceptionally hard-wearing. Its natural tannins make it resistant to insect attacks and fungal decay. Suitable for both shaded patios and sun-drenched decks, its adaptability is commendable.
  • Teak: Often reserved for luxury decks, teak possesses a golden hue that naturally silvers over time. It’s inherently resistant to moisture, making it an excellent choice for poolside decks or areas frequently exposed to rain.
  • Mahogany: With its rich, reddish-brown hue, mahogany decks scream luxury. This hardwood resists rot and decay, especially if regularly sealed. However, sourcing genuine, sustainably harvested mahogany is crucial, given the concerns about illegal logging.
  • Jarrah: Another hardwood option, Jarrah, sports a stunning reddish-brown colour. Its natural resistance to weathering, termites, and decay makes it a preferred choice for many Auckland homes, especially those closer to coastal regions.

Softwood Decking Options
Contrastingly, softwoods come from coniferous trees. They might not match the density of hardwoods, but they win hearts with their cost-effectiveness and ease of installation, making them an accessible choice for many homeowners.

  • Pine: Radiata pine, particularly popular in New Zealand, is often pressure-treated to bolster its resistance against rot and pests. This treatment renders it a practical choice for ground-level decks or shaded areas.
  • Cedar: Western Red Cedar, with its aromatic scent and rich colour palette ranging from amber to reddish-brown, offers natural resistance against rot and insects. It’s a popular choice for decks that seek to merge aesthetics with functionality.
  • Spruce: A less common option for decking but still feasible, spruce is lightweight and easy to work with. To enhance its lifespan outdoors, it’s essential to ensure it’s adequately treated against moisture and pests.
  • Larch: Another softwood worth considering is larch. It’s renowned for its water-resistant properties, making it apt for Auckland homes exposed to frequent rain showers. Moreover, its golden-brown hue, which gracefully weathers to silver, adds a touch of elegance.


Selecting the right timber for one’s deck goes beyond just cost considerations. It’s a blend of aesthetic preferences, functional needs, and the specific climatic conditions of various Auckland suburbs, like Chatswood or Bucklands Beach. Each wood type, whether hardwood or softwood, carries its own set of merits and potential challenges. Consulting with Auckland deck builders can provide valuable insights, ensuring homeowners make a well-informed choice tailored to their unique circumstances.

The Initial Costs

Right out of the gate, softwood decks like pine or spruce are more budget-friendly. For Auckland deck builders, softwood is more accessible, easier to work with and, therefore, generally cheaper to install. Conversely, hardwood decking materials come with a heftier price tag due to their premium quality and longevity.

Maintenance and Durability Over Time

Hardwood decks, given their dense nature, often resist wear, tear, and weather conditions better than softwoods. They are less prone to scratches, dents, and are typically more resilient against pests. This durability often means:

  • Less frequent maintenance: While both types of wood require regular cleaning and occasional sealing, hardwoods often demand less frequent intense maintenance routines.
  • Longer lifespan: Properly maintained hardwood decks can last several decades, while softwoods, even with impeccable care, might have a shorter lifespan.

However, in coastal suburbs like Bucklands Beach, the saline environment can expedite the wear and tear on all wood types, possibly levelling the playing field between hardwoods and softwoods in terms of maintenance frequency.

Environmental and Ethical Concerns

In the environmentally-conscious suburb of One Tree Hill, many homeowners weigh the ecological implications of their decking choices. Softwoods are generally more sustainable as they come from faster-growing trees. Hardwoods, though offering a longer lifespan, come from trees that take much longer to mature, which has led to concerns about deforestation and habitat destruction.

Auckland Council Bylaw Considerations

Certain Auckland suburbs have specific bylaw requirements around decking construction, primarily related to height and boundary restrictions. For instance, in New Lynn, homeowners may need to adhere to the Auckland Unitary Plan rules, ensuring their decks maintain neighbourhood character and privacy. Knowledgeable Auckland deck installers can provide guidance on adhering to these regulations and potentially avoiding unnecessary maintenance or rebuild costs down the line.

The Verdict: Total Cost Over Time

When calculating the total cost over time, several factors come into play:

  • Frequency of maintenance: Hardwoods, being sturdier, might need less frequent deep maintenance than softwoods.
  • Replacement costs: Softwood decks might require replacement or significant repairs sooner than hardwoods.
  • Material costs: While hardwoods have higher upfront costs, the longer lifespan might offset these initial expenditures.

Suburb-specific Considerations

In places like Chatswood, where heavy rainfall can be a common occurrence, homeowners might find hardwoods more cost-effective due to their natural resistance to water damage. Conversely, in drier areas, the price difference between maintaining hardwood and softwood decks might be narrower.

Summary Table

CriteriaHardwood DeckSoftwood Deck
Initial CostsHigherLower
Maintenance FrequencyLess oftenMore often
DurabilityLonger lifespanShorter lifespan
Environmental ImpactPotentially higherLower
Overall Long-term CostModerate to highLow to moderate

Concluding Thoughts

For Aucklanders mulling over deck design ideas NZ styles, the choice between hardwood and softwood goes beyond initial costs. While hardwood decks might seem pricier at first glance, their durability and less frequent maintenance needs can make them more economical in the long run. However, specific local conditions, such as climate variations in different Auckland suburbs and council bylaws, can influence this calculus. Consulting with expert Auckland deck builders can provide a clearer picture tailored to individual needs and locales.

Frequently Asked Questions on Hardwood vs Softwood Deck Maintenance Costs

What are the main differences between hardwood and softwood decking?

Hardwood decking, derived from trees like oak, teak, and mahogany, is denser and more resistant to wear and external elements. Softwood decking, from trees like pine, cedar, and spruce, is generally less dense but is often more affordable upfront.

Does hardwood decking require frequent maintenance?

While hardwoods like teak and mahogany naturally resist decay and pests, periodic maintenance such as cleaning and oiling can enhance their appearance and longevity.

How often should softwood decks be treated or sealed?

Softwood decks, especially those made from pine, typically need to be treated or sealed every 1-2 years to prevent rot, decay, and discoloration.

Which decking type fares better in Auckland’s climate?

Given Auckland’s humid climate, hardwood decks, particularly those made of teak or mahogany, can better withstand moisture and UV rays, though regular maintenance enhances any wood’s lifespan.

How does the cost of maintenance differ between the two?

Hardwood decks usually have higher initial costs but may require less frequent maintenance. Softwood decks, while cheaper initially, may incur more regular maintenance costs.

Do certain Auckland suburbs favor one type of wood over another?

Suburbs like Chatswood or Bucklands Beach, closer to the coast, might benefit from the durability of hardwoods due to saltwater exposure, whereas inland areas like One Tree Hill or New Lynn might find either option suitable.

Are there Auckland council bylaws affecting my choice of decking?

Certain bylaws might relate to the size or height of the deck rather than the wood type. Always check local regulations, especially if you’re in specific areas like Bucklands Beach or New Lynn.

Which wood type offers more design versatility?

Both hardwood and softwood provide diverse design options. However, hardwoods, with their unique grains and colours, might offer a more distinct and premium look.

Is there an environmental advantage to choosing one over the other?

Sustainably sourced hardwoods can be an eco-friendly choice, but many softwoods are rapidly renewable. It’s essential to verify the source and certification of the timber.

Can I mix hardwood and softwood in my deck design?

Yes, many Auckland deck builders incorporate both types to achieve specific design aesthetics or functionalities, blending the strengths of both wood types.

What are the disadvantages of a floating deck?

Floating decks, also known as grade-level or freestanding decks, have gained popularity among Auckland homeowners for their ease of installation and flexibility. However, like any construction option, they come with their own set of challenges.

Limitations in Height and Size

Floating decks are typically low to the ground, which can limit their height. This can be problematic for homeowners who desire a raised viewing platform or a multi-tiered structure.

  • Height Restrictions: Often, these decks cannot exceed a particular height due to stability concerns.
  • Space Limitations: Depending on soil quality and the underlying foundation, there might be restrictions on the deck’s spread.

Lack of Support

Unlike traditional decks, which are anchored to the house, floating decks rely solely on the ground and their frame for support.

  • Less Stability: They may shift over time, especially if they’re installed over soil that expands and contracts with the seasons.
  • Weight Limitations: With no solid anchoring, they might not support excessive weight, such as hot tubs or large gatherings.

Maintenance and Upkeep

The close proximity to the ground can lead to some maintenance challenges.

  • Mould and Mildew Growth: With limited airflow underneath, there’s a heightened risk of mould, mildew, and rot.
  • Pest Infestations: Being closer to the ground can make these decks more accessible to pests like termites.

NZ Worksafe Considerations

For deck installations, Worksafe NZ guidelines insist on safety measures during construction, especially if the work involves heights or heavy materials. While floating decks are generally safer due to their proximity to the ground, there may still be health and safety considerations to bear in mind.

Auckland Bylaw Implications

Auckland Council’s Unitary Plan sets out specific rules for structures like decks. Depending on the suburb – whether it’s North Shore, Waitākere, or Manukau – there may be unique zoning rules affecting deck installations.

  • Permit Requirements: Even though floating decks are not typically attached to the main house, some regions may still require building consents, especially for larger structures.
  • Setback Restrictions: There might be guidelines on how close the deck can be to property boundaries.

Alternatives to Timber Decks in Auckland

Given the disadvantages of floating timber decks, Aucklanders might consider several alternatives:

Composite Decking:

Made from a blend of wood fibres and plastic, this option is durable, resistant to rot, and requires less maintenance.

Aluminium Decking:

Lightweight, strong, and resistant to rust, it’s an excellent choice for those who prefer minimal upkeep.

Concrete Pavers:

Offering a solid foundation, pavers can be an aesthetic choice for ground-level patios.

Comparison Table: Decking Alternatives

Decking MaterialAverage Cost (per square metre)LifespanMaintenance RequirementsProsCons
Timber (Pine)$25015 yearsRegular sealing and cleaningNatural appearance; Easily customizableMight require more maintenance; Susceptible to pests
Composite$38025+ yearsOccasional cleaningDurable; Low maintenance; Variety of finishesHigher initial cost
Aluminium$45030+ yearsMinimal cleaningLightweight; Highly durable; Resistant to rust and rotLess natural appearance; Can become hot in direct sunlight
Concrete Pavers$20020+ yearsOccasional cleaning; Re-sandingStrong foundation; Aesthetic optionsCan be hard on feet; Weeds might grow between pavers

A floating deck, while an enticing option for its simplicity, does come with challenges. By understanding these, Auckland homeowners can make an informed decision on the best deck for their property. Remember to consult with a local builder or deck builder to ensure compliance with all local guidelines and to get the most out of your decking choice.

Common Mistakes with Floating Decks

Building a floating deck may seem straightforward, but like all construction projects, it comes with potential pitfalls. Whether you’re a seasoned DIY enthusiast or hiring deck building professionals, being aware of these common mistakes can save time, money, and ensure your deck lasts for years.

Inadequate Site Preparation

  • What Happens: Many homeowners make the mistake of placing deck blocks directly on the grass or soil without proper site levelling or weed barrier installation.
  • Consequence: This can result in an uneven deck and weed growth between the deck boards.

Ignoring Water Drainage

  • What Happens: If the deck is too flat or lacks adequate spacing between boards, water may not drain off efficiently.
  • Consequence: This can lead to pooling water, increasing the risk of rot, mould, and reducing the deck’s lifespan.

Skimping on Materials

  • What Happens: Opting for cheaper materials or not using weather-resistant screws and fasteners may seem cost-effective in the short term.
  • Consequence: Over time, the materials can deteriorate quickly, leading to more frequent repairs or even a complete deck replacement.

Overlooking Local Building Codes

  • What Happens: Assuming that because a floating deck isn’t attached to the home, it doesn’t need to adhere to Auckland’s building codes or require a permit.
  • Consequence: This could lead to fines, being asked to remove or modify the deck, or potential issues when selling the property.

Inaccurate Measurements

  • What Happens: Not measuring the site accurately or failing to square the deck during installation.
  • Consequence: This can lead to issues like an uneven deck, gaps at the edges, or even structural instability.

Being aware of these common pitfalls and planning accordingly can ensure that your floating deck not only looks great but remains safe and durable for years to come.

Frequently Asked Questions on Floating Decks

What is a floating deck?
A floating deck, also known as a free-standing or island deck, is a deck that stands independently from a house or structure, not being attached to any building. It’s supported by deck blocks and doesn’t require deep footings or digging.

How long does a floating deck last?
With proper care and maintenance, a floating deck can last anywhere from 10 to 20 years, depending on the materials used and the conditions it’s exposed to.

Is a permit required for a floating deck in Auckland?
In many cases, Auckland’s building codes require a permit for deck construction, floating or not. Always consult with your local council or a building expert before starting your project.

Can I build a floating deck on uneven ground?
While it’s possible to build on uneven ground, the site needs to be properly levelled and prepared. Failing to do so can result in an unstable or unsafe deck.

Are floating decks safe?
Yes, when built correctly and maintained properly, floating decks are safe. It’s crucial to adhere to building standards, use quality materials, and periodically inspect the deck for any issues.

Can a floating deck support a hot tub or a gazebo?
While floating decks can be sturdy, supporting heavy structures like hot tubs or gazebos might require additional support and reinforcement. It’s advisable to consult with a deck construction expert before adding significant weight.

How do I maintain my floating deck?
Routine maintenance includes checking for loose boards or nails, cleaning to remove dirt and debris, and treating the wood to protect against moisture and UV rays. Depending on the material and Auckland’s climate, resealing or staining might be necessary every couple of years.

Staying informed and addressing these common questions ensures a smooth journey in your floating deck project, from inception to completion.