The Natural Aging Process: Why Cedar Fences Turn Grey


Picture a beautiful cedar fence standing proudly in your backyard, its warm, reddish-brown hue adding charm and elegance to your outdoor space. Over time, however, you may notice a gradual transformation taking place as your once vibrant cedar fence begins to turn a subtle shade of grey. While this change might leave you wondering what’s happening, fear not, for it’s simply a natural process that occurs as cedar wood weathers and matures. In this blog post, we will explore why cedar fences turn grey and what you can do to embrace and maintain their newfound rustic charm.

Understanding Cedar Wood

Before diving into why cedar fences turn grey, let’s first understand the wood itself. Cedar is a popular choice for outdoor structures like fences and decks due to its natural durability, resistance to insects and decay, and pleasing aroma. The wood contains natural oils and resins that contribute to these properties, making it an excellent option for long-lasting outdoor installations.

The Culprit: Sun, Rain, and Oxygen

Cedar fences, like all outdoor wood structures, are exposed to the elements. The main factors responsible for the greying of cedar wood are sunlight, moisture, and oxygen. Here’s how they contribute to the transformation:

  1. Sunlight (UV Radiation): Ultraviolet (UV) radiation from the sun is a potent force when it comes to wood degradation. UV rays break down the lignin in the wood, which is responsible for its rich color. As the lignin deteriorates, the natural pigments in cedar wood are affected, causing the wood to lose its initial color and vibrancy.
  2. Moisture: Cedar fences are exposed to rain, dew, and humidity, which can cause the wood to absorb water. This moisture content fluctuations can lead to swelling and shrinking of the wood fibers, resulting in cracks and checks. These small openings further expose the wood to UV radiation and oxygen, expediting the greying process.
  3. Oxygen: Oxidation is a natural chemical reaction that occurs when wood is exposed to oxygen in the air. Over time, this oxidative process can alter the wood’s color, turning it grey or silver.

Embracing the Grey

While the greying of cedar wood might be seen as a sign of aging, it also brings a unique rustic charm to your outdoor space. Many homeowners appreciate the silvered appearance of aged cedar fences for its natural and weathered aesthetic. This patina adds character to the wood and blends seamlessly with the environment.

Maintaining Your Cedar Fence

If you prefer to preserve the original color of your cedar fence, there are steps you can take to slow down the greying process:

  1. Seal and Protect: Applying a high-quality wood sealant or finish to your cedar fence can help shield it from UV radiation and moisture, preserving its natural color for a longer time.
  2. Regular Cleaning: Periodically clean your fence to remove dirt and grime that can contribute to greying. A gentle scrub with a mixture of mild soap and water followed by a rinse can work wonders.
  3. Shade or Cover: Providing some shade to your cedar fence through trees, pergolas, or other structures can reduce its exposure to direct sunlight, slowing down the greying process.


The greying of cedar fences is a natural and inevitable process driven by exposure to the elements. While some homeowners may prefer the initial warm tones of cedar, others appreciate the unique beauty that comes with age. Whichever camp you fall into, understanding why cedar fences turn grey and taking appropriate steps to protect or embrace the change will help you make the most of this natural transformation in your outdoor space. Ultimately, the charm of a cedar fence, whether in its original color or its aged, greyed state, adds character and personality to your home’s exterior.


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