Cedar Deck Boards: How To Prevent Warping & Cracking Onsite

From homeowners to builders, everybody loves cedar as a decking material. After all, its unique grain patterns are undeniably beautiful. 

 

Despite its many qualities and benefits, cedar is not indestructible. It can suffer from issues such as warping or cracking if it is incorrectly handled and installed – and we know how much that can cost your project. 

 

Fonthill Lumber Inc. is the top supplier of durable cedar deck boards in Welland, Ontario. Having nearly 75 years of experience in the lumber industry, we know a thing or two about the prevention of warping and cracking of cedar deck boards. 

 

In this blog, we will show you how you can resist warping and cracking to ensure the strength and longevity of the decks you install. 

 

 

Why Do Cedar Deck Boards Warp & How To Prevent it?

 

Cedar deck boards can warp when they either cup, bow, or twist out of shape. Excess moisture absorption on one side of the board is generally the leading cause behind this. Quick drying on one side can have the same effect. Both create uneven internal stress, which causes the wood to lose its original shape. 

 

Contractors installing cedar decks can prevent warping by: 

 

• Storing the boards right. We suggest you cover the boards and stack them off the ground on a flat surface in a shaded spot. Avoid using plastic covers and maintain proper airflow. 
• Acclimate the wood before you start the installation process. Allowing the boards to rest onsite for about 48-72 hours will ensure they adapt to the moisture in the environment. 
• Before you begin installation, make sure you seal every side of the board with a breathable sealer or stain. This ensures even moisture absorption, which extends the life of the board.
• Leave 1/8"–1/4" space between each board while installing them. This will give them enough space to expand and contract naturally. 

 

One of the best things you can do is use kiln-dried cedar for your next decking project. Kiln-drying helps in preserving the integrity of the wood, which in turn, minimizes instances of post-installation movement. You will find these at reliable lumber yards such as Fonthill Lumber Inc. 

 

 

Cracking in Cedar Deck Boards: What It Is & How To Prevent It

 

Also known as checking, cracks on the surface of cedar deck boards can occur if the surface dries out faster than its core. This variation in moisture content causes surface tension, leading to small but noticeable splits right at the end of the boards or near their fasteners. 

 

You can prevent cracks from setting in by: 

 

• Securing your decking with the right fasteners. We strongly recommend hot-dipped galvanized or stainless steel screws. These not only reduce the stress on wood, but are effective in resisting corrosion too. As for traditional nails, they are best avoided due to their tendency to loosen, rust, and create cracks over time. 
• Pre-drill holes near the end of the boards before installation. It is the safest way to relieve pressure on the boards while fastening them. 
• Do not overdrive the screws as that may damage the surface of the decking and increase its chances of splitting. 
• If you have to cut deck boards onsite, make sure you seal their ends immediately to prevent moisture loss. 

 

Did you know that installing cedar boards with the bark-side up can dramatically reduce the occurrence of cupping? It also helps in shedding water evenly across the surface of the boards so you do not have to worry about one side being dryer or wetter than the other. 

 

 

Conclusion

 

Though wood quality plays a critical role in the prevention of warps and cracks, maintaining discipline during installation is what seals the deal. Adopting strategies such as board acclimation, proper fastener use, and sealing the ends of boards can help you keep all kinds of damage at bay. 

 

Looking for high-quality cedar deck boards? Fonthill Lumber Inc. is the most trustworthy lumber yard in the entire Niagara region. Contact us to get premium-grade cedar decking along with additional building supplies such as fasteners and more. 

 

 

FAQs

 

Can cedar deck boards be used with pressure-treated frames?

 

Yes. However, we strongly recommend the use of appropriate flashing and barriers. This will prevent the onset of chemical reactions between the two. 

 

How long will cedar deck boards last with proper care?

 

When installed and maintained right, cedar deck boards can last for 20-25 years. 

 

Can oil-based stains be used on cedar?

 

Yes. Oil-based stains are a great choice as they tend to penetrate deeper and offer superior UV and moisture protection.