Choosing the Right Deck Material for WA Climate

Find the best deck material for Washington’s weather. Explore durable, low-maintenance options for your outdoor space.
October 17, 2023
11 mins read
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Are you facing the perplexing choice of finding the perfect decking material for the unpredictable climate of Washington State?

Well, you’re not alone. We all want our outdoor spaces to remain beautiful and functional, no matter what the weather throws our way, and that starts with choosing the right deck materials.

With years of experience working with homeowners in the evergreen city of Marysville, WA, we’ve come to understand the key factors that play into your decision when selecting the ideal decking material.

But here’s the often-underestimated secret that makes a world of difference, especially in Washington State - durability.

Some deck materials are more suited to handle Washington’s unique climate, where it’s common to experience both rainy days and brilliant sunshine in the same week. Two heavyweights in weather-resistant decking materials are PVC and composite decking
.

In this guide, we’ll look at different decking materials and explain why Washington’s changing weather means your deck needs to be extra durable.

Understanding Washington's Climate


Before we dive into decking materials, it’s important to understand what makes Washington’s climate unique. Our state is quite diverse when it comes to weather, so your choice of decking material should reflect where you reside.

Understanding the climate is crucial for selecting the right decking products that can withstand the diverse weather conditions of Washington State.

Western Washington - The Wet Side


Living on the western side of Washington is an experience in itself. The weather here tends to be relatively mild, but it’s also known for frequent rainfall and moisture.


Before we dive into the nitty-gritty of choosing the right deck material for your Western Washington home, here’s a quick climate snapshot to set the stage:

  • Mild, But Moist: Summer days are pleasant, with temperatures rarely rising above 79°F (26°C). Even in winter, daytime temperatures seldom drop below 45°F (8°C).

Snow is a rarity, but you can expect nighttime temperatures to dip into the 20s and 30s (-6° to -1°C). So, while you might not need a snow shovel, you’ll still want your deck to endure some chilly nights.

  • A Shower of Rain: Western Washington, especially the greater Seattle area, is well-acquainted with an annual rainfall of about 37 inches (94 cm). This means your deck material needs to be primed to handle moisture without falling apart.

In such a moisture-rich environment, composite and PVC decking are excellent choices due to their resistance to mold, mildew, and moisture damage. After all, you wouldn’t want your beautiful deck to succumb to the frequent drizzles and downpours, right? ‍

In the rain-soaked world of Western Washington, choosing the right decking material isn’t just about aesthetics; it’s about ensuring your outdoor space stands up to the elements with unwavering strength.

So, if you’re wondering which deck material is up to the task, stick with us, and let’s explore your options.

Eastern Washington - The Land of Extremes


Eastern Washington faces some of the most extreme weather in the state. Thanks to the towering Cascade Range, this region swings from blazing hot summers to freezing, icy winters.

Here’s what you should know about Eastern Washington’s challenging climate for your decking project:

  • Two Sides of the Cascade Range:
    The Cascade Range shapes the weather across Eastern Washington. Areas like Wenatchee, Ellensburg, and the Tri-Cities sit in the rain shadow, enjoying plenty of sunshine—nearly 300 days a year! These spots see minimal rainfall, only about 7 to 9 inches annually.

    Further east, places like Spokane get a bit more, between 15 and 30 inches a year. When you’re choosing deck materials here, it’s important to think about both the sun exposure and the risk of water damage over time.
  • Extreme Weather Impact:
    Summers can be scorching, with temperatures climbing into the upper 80s and mid-90s. Winters bring freezing cold, often dropping to just above 0°F. Your deck boards, stair treads, and deck surface need to handle these major temperature swings.

    That’s where composite decking or composite and PVC decking really shines. These decking products are engineered to resist warping, rot, mold, and mildew, while offering low maintenance and long-term durability.

    Unlike traditional wood, composite boards made with wood fibers and recycled plastic stay strong in both scorching sun and icy cold, making them a great option for homeowners in this region.

In Eastern Washington, where sun exposure and freezing temps test your outdoor spaces, picking the right decking material isn’t just about looks—it’s about long-term maintenance, lower maintenance costs, and making sure your dream deck stands strong for years to come.

Now that you know what Eastern Washington’s weather throws at your deck, let’s explore decking materials that offer the best durability, style, and beauty for your outdoor space!

Understanding Decking Materials


When it comes to building a deck, choosing the right decking material is crucial. With so many options available, it can be overwhelming to decide which one is best for your project.


In this section, we’ll break down the different types of decking materials, their benefits, and drawbacks.


Homeowners love composite decking for its durability and easy upkeep. Blending wood fibers with recycled plastic, it resists rot, warping, and damage from insects.

It’s also available in a range of colors and styles to match different architectural styles, making it a versatile option for any home.

Traditional wood decking, on the other hand, is a classic choice that offers a natural look and feel. However, it requires more maintenance than composite decking, including staining, sealing, and painting.

Wood decking is also more prone to warping, cracking, and rotting, which means you’ll need to invest more time and effort to keep it looking its best.

PVC decking is another option that’s gaining popularity due to its durability and low maintenance requirements. Made from 100% plastic material, PVC decking is resistant to moisture, mold, and mildew.

It’s also easy to clean and maintain, making it an excellent choice for those who want a hassle-free deck. However, it may not offer the same natural aesthetic as wood or composite decking.

Wooden Decking Options


Let’s kick things off with traditional wooden decking materials. Many homeowners adore the classic, timeless look of wood.


However, you need to choose the right type of wood to cope with our state’s erratic climate. Many homeowners adore the classic, timeless look of natural wood, which offers an authentic and beautiful aesthetic.

Cedar Decking - The Pacific Northwest's Sweetheart

  • Cedar’s Benefits: Cedar deck boards are a local favorite due to their natural resistance to both rot and insects. This makes them a stellar choice for Washington’s wet climate.
  • Aesthetic Appeal: There’s no denying the beautiful appearance and pleasant aroma of cedar. It’s an instant crowd-pleaser.
  • Maintenance Needed: To keep cedar decking in tip-top shape, you’ll need to commit to regular sealing and staining. But the effort is well worth it.

Redwood Decking - Beauty and Brawn

  • Performance in Washington: Redwood is an excellent choice for a wood deck in Washington’s wet climate.
  • Durability: It’s naturally resistant to decay, which makes it an excellent choice.
  • Aesthetics: Much like cedar, redwood is known for its stunning appearance. ‍

Pressure-Treated Wood - A Budget-Friendly Option

  • Suitable for Washington’s Climate: Pressure-treated wood can hold its own in the unpredictable weather of Washington State.
  • Budget-Friendly: It’s often a cost-effective choice, perfect if you’re watching your wallet.
  • Maintenance: However, be ready for some upkeep, including regular sealing and staining. Additionally, pressure-treated wood offers lower maintenance costs compared to other wood options, making it a budget-friendly choice.

Engineered Decking Options - Low Maintenance, High Durability


If you’re inclined toward low-maintenance solutions, engineered decking materials are the answer, especially in Washington’s changeable climate.


Among these options, composite decking boards stand out for their durability and low maintenance requirements.

Recycled Plastic and Wood Composite - Eco-Friendly Choice

  • Composition: These composite boards blend recycled plastic with wood fibers to create a durable and eco-friendly decking material.
  • Durability: These composites are highly durable and need minimal maintenance.
  • Eco-Friendly: Using recycled materials is a fantastic eco-conscious choice.

Capped Composite Decking - Ready for Washington's Weather

  • Advantages for Washington: Capped composite decks are well-suited for the Pacific Northwest’s inclement weather.
  • Resistance: They withstand moisture, fading, and staining - all common issues due to our climate.
  • Aesthetics: You’re not limited when it comes to style and color options.

PVC Decking - The Wet Climate Warrior

  • Ready for the Wet: PVC decking materials are strong contenders against Washington’s frequent rain. In addition to PVC, composite deck boards are also a strong contender against Washington’s frequent rain.
  • Low Maintenance: They require minimal upkeep, making them a hassle-free option.
  • Design Choices: You have a plethora of colors and styles to match your personal aesthetic.

Decking Material Comparison


When comparing decking materials, it’s essential to consider factors such as durability, maintenance requirements, cost, and aesthetic appeal.

Here’s a comparison of the three most popular decking materials:

Material Durability Maintenance Cost Aesthetic Appeal
Composite Decking High Low Moderate High
Traditional Wood Decking Medium High Low High
PVC Decking High Low High Medium

As you can see, composite decking offers the best balance of durability, low maintenance, and aesthetic appeal. It’s an excellent choice for those who want a beautiful deck with minimal upkeep.


Traditional wood decking is still a popular choice for those who value a natural look and feel, despite its higher maintenance requirements.


PVC decking is a good option for those who prioritize durability and low maintenance, though it may not have the same visual appeal as wood or composite decking.

Climate-Resistant Decking Accessories


‍While selecting the right decking material is crucial, don't forget the importance of climate-resistant accessories.


Washington's harsh weather means you should choose durable add-ons.

  • Fasteners: Opt for weather-resistant screws and nails to keep your deck intact despite the elements.
  • Railing Systems: Invest in sturdy railing systems that withstand rain and sun without excessive wear.
  • Under-Deck Drainage Systems: Consider installing a drainage system to keep the area under your deck dry during heavy rain. This is especially useful in regions with heavy rainfall.

Maintaining Your Deck - A Little Care Goes a Long Way


No matter which material you pick, keeping up with regular maintenance is essential to make your deck last longer.

  • Cleaning: Periodically clean your deck to remove dirt, debris, and prevent mold and mildew growth.
  • Sealing: Wooden decks should be sealed every year or two to maintain their integrity.
  • Staining: Apply stain when needed to protect your deck from the elements. How often you need to do this depends on your decking material.

Budgeting and Planning for Your Deck


Building a deck can be a significant investment, and it’s essential to budget and plan carefully to ensure that your project stays on track.


Here are some tips to help you budget and plan for your deck:

  1. Determine your budget: Decide how much you’re willing to spend on your deck, including materials, labor, and any necessary permits. This will help you narrow down your options and make informed decisions.
  2. Choose your decking material: Select a decking material that fits your budget and meets your needs. Consider factors such as durability, maintenance, and aesthetic appeal when making your choice.
  3. Plan your deck design: Consider the size, shape, and style of your deck, as well as any features you want to include, such as railings, lighting, and seating areas. A well-thought-out design will ensure your deck is both functional and visually appealing.
  4. Get quotes from contractors: If you’re hiring a contractor to build your deck, get quotes from multiple contractors to compare prices and services. This will help you find the best value for your money.
  5. Plan for maintenance: Consider the maintenance requirements of your decking material and factor in the cost of any necessary repairs or replacements. Regular maintenance will help extend the life of your deck and keep it looking great.

By following these tips, you can create a beautiful and functional deck that meets your needs and fits your budget. With careful planning and the right materials, your dream deck can become a reality, providing you with a stunning outdoor space to enjoy for years to come.

Conclusion - The Perfect Deck, Come Rain or Shine


In Washington State, where the weather can be as unpredictable as a plot twist in your favorite novel, selecting the right decking material is vital.

Take into account the climate in your specific area, your aesthetic preferences, and your willingness to invest in maintenance. ‍

If you're still unsure which material is best for you, don't hesitate to reach out to a friendly deck contractor in Marysville, WA. Your deck can become an amazing outdoor haven for every season with their expertise and guidance.

So, go ahead and choose your ideal all weather decking material with confidence! You're just a few steps away from enjoying your beautiful outdoor space all year round. Don't let the weather rain on your parade!

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