How Long Does a Wood Deck Last?

California isn’t called the “Golden State” for nothing. As a homeowner in our beautiful state, you likely want to make the most of your outdoor space and enjoy the weather that so many other places envy. 

Chances are, your home already has a wood deck – or you’re thinking about installing one. Not only does a deck allow you to enjoy California’s temperate climate every day, but it also expands your living space and adds to the home’s value. Experts estimate, in 2022, that a wood deck offers a resale value of at least 64.8%. 

The question is, how long does a wood deck last? If you’re going to install a new one, or you moved into a house that already has a deck, you’re likely wondering when you’ll need to consider replacing it. 

You can typically expect a deck to last 10-30 years for untreated wood and 50 or more years for treated wood and composite. However, the lifespan of a deck also depends heavily on its materials and how you maintain and seal it over the years.

Factors That Affect the Life Span of Your Deck

Several factors can significantly influence the lifespan of your wood deck:

1. Maintenance: Regular cleaning, sealing, and refinishing can dramatically increase the longevity of your deck. It’s key to sweep away debris, remove any mold or mildew, and apply a protective sealant to guard against the elements.
2. Climate and Weather: The climate and weather patterns where you live can impact the lifespan of your deck. Decks in areas with extreme weather conditions, like heavy snowfall or intense sun, can wear out faster than those in more temperate zones.
3. Use and Foot Traffic: The amount of use and traffic your deck gets can also affect its lifespan. A deck that’s heavily used may show signs of wear and tear more quickly.
4. Quality of Materials: The quality of the wood and other materials used in the construction of your deck plays a significant role in its durability. High-quality materials are more likely to withstand the tests of time.
5. Construction Quality: Lastly, the way your deck is built, including the quality of the construction and the skill of the builder, can have a substantial impact on how long your deck lasts.

Treated Vs Untreated Wood

When you choose materials for your wood deck, it’s important to understand the difference between treated wood and untreated wood.

Treated wood is generally more durable than untreated wood. Treated wood is pressure-treated with a chemical preservative that helps protect against rot, decay, and insect damage. Pressure treatment forces the chemicals deep into the wood fibers, so it is much more resistant to mold and decay than untreated wood.

It is recommended to use treated wood if your deck is going to be exposed to moisture or outdoor elements since it is much more resistant to rotting and water damage.

Caring for Different Types of Wood Decks

Ipe

Ipe decks are predominantly known for their durability. One of the hardest woods available, ipe wood is naturally resistant to insects, rot, and many other materials that can compromise its lifespan. Its protective, natural oils preserve it over the years, which means ipe decks can be expected to last as long as 75 years under the right care. 

To preserve the life of ipe decks, homeowners should regularly sweep away dirt and debris, as well as items that could sit on the wood and rust over time. We also recommend keeping an eye out for mold growth, especially if your property receives a fair amount of rain.  

If you love the color of your ipe deck and you want to preserve those exact hues, use a sealer on your deck every year or two. A strong sealant is formulated to penetrate ipe, even though it’s quite dense. 

Redwood

Redwood decks are lovely to look at and extremely popular throughout California. This kind of wood is stable and straight, as well as naturally resistant to wood-boring insects and harsh weathering. Furthermore, its high stability makes it less likely to warp or cup over time. 

Typically, redwood decks last for about 30 years. However, if homeowners skip out on refinishing and sealing on a regular basis, redwood can blacken and turn more silver-grey in color than reddish-brown. This is especially common in areas that receive a lot of harsh sunlight. 

Mahogany

Mahogany decks are appreciated for their exquisite beauty and superior durability. This type of wood’s rich, dark color and tight grain make it a popular choice for homeowners seeking a balance of aesthetic appeal and long-lasting performance. Often, a well-maintained Mahogany deck can last for over 40 years.

Maintenance for Mahogany decks involves a combination of regular cleaning and periodic sealing. Regular sweeping and cleaning help to prevent the accumulation of dirt and debris that can lead to mold and mildew growth. Use a mild, wood-friendly cleaner and a soft bristle brush to gently clean the surface. Avoid power washing as the high pressure can damage the wood.

Sealing is an important part of Mahogany deck maintenance to preserve the wood’s color and protect it from the elements. Look for a high-quality sealant specifically designed for hardwoods like Mahogany. It’s recommended to reapply the sealant every one to two years, depending on the exposure to sunlight and weather conditions. This will ensure longevity and maintain the vibrant color of your Mahogany deck.

Cedar

Cedar decks are well-loved for their natural beauty, durability, and resistance to decay. This type of wood is imbued with natural oils that help to fend off insects and prevent rot, contributing to a lifespan that can extend to 20-30 years with proper maintenance. Cedar decks, like many other wood options, require a certain level of upkeep to preserve their color and longevity.

Maintenance for Cedar decks primarily involves regular cleaning and sealing. Regular sweeping helps to prevent the accumulation of dirt and debris that can lead to mildew growth and discoloration. It’s also advisable to wash the deck at least once a year using a brush and a mild, wood-friendly cleaner. While Cedar is a sturdy wood, it is best to avoid power washing, which can cause damage to the wood’s surface, leading to faster deterioration.

Sealing is the next important step in Cedar deck maintenance. This process not only helps to preserve the wood’s color but also provides a layer of protection from the elements. A high-quality, water-repellent sealant is recommended for Cedar decks, and homeowners should aim to reapply it every 1-2 years. This frequency can vary depending on the level of sun exposure and weather conditions, but regular reapplications will protect your Cedar deck from rain and UV rays, prolonging its lifespan and maintaining its natural beauty.

Composite

Composite decks are made of recycled materials, such as wood shavings and plastics. Many people in California opt for these decks because they are eco-friendly but also because they retain their color and durability for many decades.

While composite decks may look like they’re made from real wood and are often marketed as low maintenance, it is a misnomer to say they require no maintenance at all. Especially in areas with strong sunlight like Southern California, if not treated with a proper, penetrating sealer, they will fade just like a wood deck, albeit at a slower pace. This makes them somewhat more resilient but not entirely exempt from maintenance. It’s essential to ensure they are protected against the harsh sun to retain their color and integrity.

Moreover, although staining is not required, the application of a suitable sealant can provide significant advantages. With regular cleaning and debris removal, composite decks can maintain their beauty and durability for several decades.

Why Annual Deck Maintenance Matters 

No wood deck lasts forever, but regular, comprehensive maintenance plays an enormous role in extending its life. It doesn’t matter if you have a deck that’s made of composite, ipe, redwood, or another material entirely – we always advise our clients to schedule annual maintenance. 

Cleaning and resealing decks on a yearly basis help: 

• Preserve the natural color of the wood
• Prevent graying or blackening  
• Remote pollutants spread by the air
• Mitigate the risk of mold and mildew infections 

To learn what regular deck maintenance should look like on your property, reach out to our team. We’ll help you pick the best care plan for your deck based on its materials and environment. Our goal is always to maximize your deck’s lifespan through excellent maintenance.

The Consequences of Neglecting Wood Deck Maintenance

Neglecting the regular maintenance of your wood deck can lead to a series of unwanted consequences. Here’s what might happen:

1. Warping and Rotting: Over time, the absence of proper deck care can lead to warping and rotting of the wood. These can significantly shorten the deck’s lifespan and lead to costly repairs or even total replacement.
2. Mold & Mildew Growth: Without regular cleaning and sealing, your deck becomes a perfect breeding ground for mold and mildew. This affects not only the deck’s appearance but also its structural integrity.
3. Discoloration: The natural elements, particularly the sun, and rain, can cause the wood to discolor and lose its original beauty. This can ultimately decrease your property’s curb appeal.

Common Mistakes in DIY Deck Maintenance

Maintaining a deck may seem straightforward, but homeowners often make several common mistakes that can shorten a deck’s lifespan.

• Using the wrong cleaner: Not all deck cleaners are created equally. The cleaner you pick should be appropriate for the deck material. For instance, using a cleaner with bleach on a wood deck can cause discoloration.
• Ignoring mildew: Mildew thrives in damp, shaded areas. If neglected, it can cause the deck to become slippery and unsafe, and can even lead to rot.
• Neglecting to sand the deck: Sanding your deck before applying a sealant is crucial. This step helps to open up the pores of the wood, allowing the sealant to penetrate deeply and protect the deck more efficiently.
• Inconsistent maintenance schedule: Regular maintenance is key to a long-lasting deck. Skipping years or only maintaining certain areas can lead to uneven wear and tear.
• Over-application of sealer: While it’s important to seal your deck to protect it from the elements, too much sealer can create a film on the wood’s surface that traps moisture, leading to peeling and chipping.

Avoiding these common mistakes can go a long way in preserving the lifespan of your deck. Remember, the aim of maintenance is not just to enhance the appearance of your deck but to protect and extend its life. Regular, proper care can help your deck last for many happy summers to come. 

How Proper Cleaning Extends a Deck’s Lifespan 

As a homeowner, you understand that your deck is more than just an extension of your living space. It’s also a valuable investment that requires regular maintenance to preserve its beauty and functionality. When it comes to annual deck cleanings, we’re not talking about a quick power wash, which can potentially damage the wood and compromise its sealants if used improperly.

DIY Cleaning Tips for Homeowners

While professional services are the best route to maintain your deck’s integrity, there are a few DIY measures you can take to keep your deck looking its best between professional cleanings:

1. Use a mild, non-abrasive cleaner suitable for the type of material your deck is made from.
2. Avoid using harsh chemicals that can discolor or damage the wood.
3. Regularly sweep the deck to remove leaves and other debris that could cause stains or promote mold growth.

Remember, these tips are supplemental to professional cleaning services, not a replacement.

Why Professional Cleaning Matters

The most effective way to clean your deck—regardless of its material—is to entrust this task to professionals. At Teak & Deck, our team of experts uses safe cleaners and brighteners to ensure that the cleaning process is both effective and harmless to your deck. We skillfully sweep, clear, and power wash your deck with the utmost care, protecting your investment while enhancing its longevity.

How Often Should You Clean Your Deck?

Ideally, a comprehensive deck cleaning should take place at least once every 12 months. However, if your deck endures heavy exposure to elements such as intense sunlight, frequent foot traffic, or substantial rain, we recommend scheduling more frequent cleanings—perhaps even every six months.

What’s the Difference Between Sealant Types?

As we mentioned, sealing wood decks on a regular basis also contributes to a longer lifespan. Here are some other benefits: 

• Add additional protection from regular wear and tear
• Help prevent cracking from UV rays and sunlight
• Defend against insect infestations 
• Enhance the natural appearance of the wood materials

However, not all wood sealers are equal in quality. There are many sealant products on the market, and we see far too many consumers select the wrong option for their deck. Not only should you use a sealant that works well with your deck’s materials, but you should also pick one that is meant for your property’s climate. 

The best sealants should protect your deck for at least three to five years. Of course, different sealers offer different levels of protection against rain, sun, and other contaminants. Although high-quality sealants may be more expensive upfront, they can save homeowners money and pain down the road by better-protecting decks. 

Let Us Help You Extend Your Deck’s Life

At Teak & Deck Professionals, our goal is to preserve and maintain your deck for decades to come. We don’t just install and clean decks – we help homeowners understand how to maximize their aesthetics and durability. 

Turn to us for annual maintenance, sealing services, and guidance when it comes to your deck. We’ve worked with more than 1,500 customers throughout San Diego, Orange County, and Los Angeles, and we’re ready to help you. 

To learn more or schedule a consultation, contact us online. We look forward to the opportunity to maintain and preserve your wood deck. 

First published: May 3, 2022

Updated: Sep 9, 2023