Wood checking is a common customer concern we respond to here at Crosby Fence Company. So what is wood checking and does it mean your fence is at structural risk? Keep reading to find out!
What is Wood Checking?
Wood is a natural fence building material and is subject to the elements. Wood checking is a normal process that does not weaken your fence’s structure. Wood checks are the most common type of crack that you see in various types of lumber, including cedar fence posts. The good news is that they’re completely natural! Checking is a normal and pretty much unavoidable part of the wood seasoning process. The seasoning process is just a fancy title for the time is takes wood to dry out.
Why Does Wood Checking Happen?
All wood starts out alive and green. Over time, it seasons or dries. As the wood dries, it might start checking. This natural, unstoppable process happens as the wood dries from the surface to the center. It’s important to note that wood checking happens in all types of lumber. If you live in a home with exposed beams, for example, you may notice checking on those beams as well.
As wood dries, the exterior surface (also known as the sapwood) dries much faster than the inner core (the heartwood). As the sapwood dries, it rapidly shrinks while the heartwood stays the same. This tension creates the checks so many new fence owners call about.
When Does Wood Checking Happen and Does it Stop? Most new fence owners observe the wood checking process within the first few months of their fence’s life. Sometimes, wood checking does not start until the summer months when the sun is most drying. Remember – wood fences are are a natural material and do eventually weather and warp.
Is Wood Checking Bad for my Fence? Typically, wood checking is nothing to worry about when it happens to your fence. Laboratory tests have determined that wood checks do not at all affect the structural integrity of wooden fences; however, it is always a good idea to check on your fence periodically.