Is pressure treated pine good for fences?
Caleb Butler
Updated on March 31, 2026
Pressure-Treated Wood Pressure-treated lumber is a widely available and budget-friendly material for decks, fences, and other outdoor constructions. This type of wood, while affordable, is susceptible to warping and requires yearly restaining and refinishing.
Can you use treated pine for fence posts?
Treated pine fencing posts are the most common type of wooden fence post used today. Treated Pine is a durable timber with either CCA and ACQ (arsenic free) treatment designed to protect against termites, fungi and rot. 150×150 Pine fence posts and all other sizes and lengths are available to order.
How long do treated pine fence posts last?
First make sure that the timber you use for your fence posts are treated or they will rot very quickly. For example, untreated pine can rot away within 12 months. But Treated Pine can last you up to 30 years.
Should I use pressure treated wood for fence posts?
The preservatives in pressure-treated wood provide protection against biological and environmental elements including termites and fungal decay. If not protected, these elements could cause your fence to fail.
How long will pressure treated pine last?
Pressure treated wood can last for up to forty years or more. Precisely how long it will last depends on the chemicals used in the pressure treatment, the project type, the wear and tear the wood will endure, the species of wood, the amount of exposure to harsh wet environments and how well it is maintained.
How long will a pressure treated fence last?
about 15-20 years
But how long do pressure-treated wooden fences actually last? From what we’ve seen during our last 12 years of business, a typical pressure-treated wooden fence lifespan is about 15-20 years. Around the 15-year mark is when most homeowners report seeing noticeable aesthetic declines, like rotting and splitting.
Will treated pine rot in soil?
H4 treated pine decking is safe for both above and in ground uses. That means, you can expect your treated pine decking not to rot for a long, long while.
Do you need to seal treated pine?
Answer: Treated pine is dipped in preservatives prior to sale when applied to outdoor applications. However, this process will not stop the timber from requiring maintenance. You should seal and oil the deck annually with appropriate preparation.
How long does pressure treated pine last?
15 to 20 years
Ordinary Maintenance On average, a deck made from pressure-treated pine will last 15 to 20 years before succumbing to the accumulated stress of direct sunlight, rain, salty ocean breezes, insect infestation and repeated cycles of thermal expansion and contraction.
How long does treated pine last?
Treated pine decking can last for over 30 years when properly treated – this means the hazard level of at least H3, ideally H4. The lifespan of the treated pine depends whether it is touching the ground, how thick the poles or planks are and the hazard level of its treatment.
How long will pressure treated post last in the ground?
A treated 4×4 will last 20 to 25 years in the ground if the conditions in the soil and climate are favorable. That number could increase to 40 to 75 years if you install the treated 4×4 in a cement ring rather than the soil. There are a few factors that influence how long the 4×4 can last in the ground.
How do you treat a fence post?
Push soil around the fence post to conceal the gravel; moist soil around the fence post can cause the post to rot, which is why you must treat a portion of the wood that is exposed above ground. Build the soil up at a slight slope around the post to encourage drainage and prevent water from pooling up at the base of the post.
What is a pressure treated fence?
Pressure treated wood (PT) pine is the most popular residential fence choice in outdoor structures (decks, porches, and all types of residential fences, for example). However, PTP can warp, shrink, and crack. The sun makes any outdoor damage worse.
What is a galvanized fence post?
The most common form of galvanized steel fence is the chain link fence, which consists of steel posts that hold up chain links. A galvanized steel fence is most often used for security purposes around homes and other buildings or establishments, most notably in prisons.