Knowledge Builders

how long will a treated 4x4 post last in the ground

by Elena Bahringer Published 2 years ago Updated 2 years ago
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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.Aug 14, 2021

How long will a 4x4 post last in the ground?

Treated 4×4 posts last an average of 20 years in the ground. Some 4×4 posts can last for up to 40 years if you use a surface treatment and the climate is mild. Conditions such as excessive moisture and frequent storms can shorten the lifespan of 4×4 posts.

How long do pressure treated posts 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.

How long will a treated 6x6 last in the ground?

A treated 4×4 post can endure 20 to 25 years in the ground, depending on how favorable the soil and climatic circumstances are. The weathering qualities or favorableness of the soil, as well as harsh weather conditions, will affect the durability of 4×4 posts in the ground.

How long does a power post last in concrete?

Feb 06, 2020 · Then, how long does a 4x4 post last? Depending on the species, cedar may last for about 15-30 years, spruce may last for about 4-7 years, and pine may last for about 5-12 years. One may also ask, how long will a pressure treated 6x6 last in the ground? The treated post that are rated for ground contact are guaranteed for 40 years.

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Will pressure treated wood rot if buried?

Will pressure treated wood rot in the ground? A block of pressure-treated wood can stay rot-free for up to 40 years. However, constant contact with water will eventually cause the pressure-treated lumber to rot in the ground.Nov 23, 2021

How long will pressure treated post last in the ground?

How long will pressure treated wood last in the ground. The life expectancy of pressure treated wood in the ground is about 40 years before it begins to rot.Apr 5, 2022

Will treated posts rot in the ground?

Simply setting the posts in concrete does create a condition that will accelerate rot in the bottom of the posts. With pressure-treated posts, the rot will be slow.Apr 23, 2013

How long does it take for pressure treated posts to rot?

It depends on the climate, the type of wood, its uses, and how well it's maintained. While pressure treated poles can stay up to 40 years without any signs of rot or decay, decks and flooring might only last around 10 years.Oct 5, 2020

How long will a pressure treated 6x6 last in the ground?

A PT post will last a long time in concrete, maybe 5 to 10 years in soil alone. I suggest you embed the post in concrete, trowel a peak around the post so water runs off, and don't let the PT post come in contact with the ground.Mar 2, 2011

How do I extend a 4x4 post?

The best way to join two 4x4s to extend a post is with a half-lap. The simple cuts make it ideal for a beginner or pro to make, and it's easier to do in limited space. Adding glue, plates, and bolts increases the lateral and twist resistance to form a very strong connection.

How long do treated fence posts last?

If properly treated and installed, pine fence posts can last for 20–35 years; untreated pine posts might only last 3–7 years. chemical in the posts.

Is concrete necessary for fence posts?

No, fence posts don't need to be set in concrete, and there are plenty of other ways to fix your posts if this feels a bit too permanent. If you are using wooden posts, concrete may actually be the worst option.Apr 8, 2021

How do you protect wooden posts in the ground?

Set in Gravel and Concrete

Fill the first three inches up with gravel so the end of the post doesn't come into contact with the dirt. Gravel allows water to drain quickly away from the post and into the soil. Be sure to place the post in the center of the hole. Finally, fill the entire hole up with cement to the top.
Dec 16, 2020

How long does treated timber last outside?

Wood that has been pressure treated should last a good 15 years, or more if they are well cared for. Our timber products are pressure treated to the highest standards, meaning that they won't rot anywhere near as fast as untreated timber would.Aug 13, 2018

How long will a cedar post last in the ground?

Cedar has a reputation for durability, but unless a few guidelines are followed, cedar posts can fail in as few as five years.Mar 13, 2021

How do you keep pressure treated wood from rotting?

The best way to protect from pressure-treated wood rot is to apply a deck preservative. Like we mentioned earlier, stains, paints and sealants are the best choice to use. You can find these items easily at the local hardware store.Aug 12, 2014

How long does a 4x4 last?

A treated 4×4 will last 20 to 25 years in the ground if the conditions in the soil and climate are favorable.

What factors influence the lifespan of treated 4x4s?

One final factor that influences the lifespan of treated 4x4s is the type of wood of the 4×4.

What is treated wood?

Treated wood refers to wood that has undergone some sort of treatment with pesticides and other chemicals to make it last longer.

Why treat wood for fire?

Manufacturers can treat wood to make them more resilient against fire .

How long does reinforcement last?

Proper reinforcement can ensure the structure lasts for years.

When does wood weather?

Wood weathers when it becomes wet and dry in rapid succession.

Can you bury wood in soil?

You can either bury the wood directly in the soil or place it in a cement ring.

How long do 4x4 posts last?

Also know, how long does a 4x4 post last? Depending on the species, cedar may last for about 15-30 years, spruce may last for about 4-7 years, and pine may last for about 5-12 years.

How long do treated wood stakes last?

The Forest Products Laboratory and other research groups have shown that treated wood stakes placed in the ground for more than 40 years remain rot-free. But young pressure-treated decks, many less than 10 years old, are being shoveled into landfills. Click to see full answer.

Does pressure treated wood rot?

Pressure treated wood will eventually rot in concrete.not nearly as quickly as untreated, but it WILL eventually.

How long does a treated post last?

Based on the limited detail in the question, a treated post will last from a few weeks to several decades.

How long does Cedar last?

Cedar can usually go ten years or more. Black Locust lasts the longest but is used primarily for split rail fences. All will go longer if you use concrete instead of gravel when you set them. 1.1K views.

How long does rice last in a bag?

Depending on what you mean rice, in it’s uncooked dry state either loose or in breathable bags will last for about 18 months before it will start to change. Rice that has been processed by canning the dry, uncooked rice and stored sealed in a commercial can can last over 25 years.

How long does lime cement last?

At least 15 years, maybe a less time with lime concrete settings in the hole.May last longer if there is a 6 inch small pebble rock at the base of the post hole for water drainage, and a liquid tar sealant applied on the bottom 2ft of the post to prevent the lime in the concrete from eating away the wood.

How long do rain slugs last?

In sunny, rainy Florida, they can last up to 10 years, not much more. They can prematurely fail in one particular way I've seen, just below grade level.

Which woods are naturally resistant to insects?

Some woods are naturally resistant to insects and biological decay - cedars and redwoods typically survive better in subsoil conditions than many other woods. Pressure treated

How long does a PT post last in concrete?

A PT post will last a long time in concrete, maybe 5 to 10 years in soil alone. I suggest you embed the post in concrete, trowel a peak around the post so water runs off, and don't let the PT post come in contact with the ground.

How long do RV posts last?

If you find the RV posts I mentioned earlier, they are steel, treated and when put in concrete will last 25 years or more.

Does post delivery treatment deep seep into timber?

1. The length of time will also depend on whether it has been cut after manufacture or not as well. The treatment does not always deep seep into the timber, therefore making any post delivery cuts may expose any untreated timber. Always best to retreat a fresh cut before installing. Share.

How long does pressure treated wood last?

Pressure-treated wood is great when used for outdoor structures. It has a relatively long lifespan of up to 40 years. Besides, it is less expensive.

How long do pine fence posts last?

A properly pressure treated pine fence posts, for example, can exist for a range of 20–35 years if well installed while the untreated one only lasts between 3–7 years. In a case where large numbers are supposed to be installed, it is practical to drive them into the ground using a hydraulic post driver. Ensure that the small end is driven first.

How to preserve pressure treated wood?

If you are looking to conserve the original color and appearance of your pressure treated wood, then clean your deck periodically. Other than that, apply a water-repellent sealer with an ultraviolet stabilizer. This stabilizer does not entirely prevent eventual discoloration of the wood. However, it slows the process of discoloration.

Can you use mildewcide on pressure treated wood?

Each time wood gets moist or exposed to humid conditions; there’s an occurrence of mildew growth. So that you don’t experience this less pleasing growth in your pressure treated wood, you’ll have to clean and stain it. Use a cleaner with a mildewcide; this way, your treated wood will retain its brightness and beauty.

Can pressure treated wood be swollen?

You can apply a sealer or opt for a semi-transparent stain for pressure-treated wood to minimize this free movement of water into your wood.

Does pressure treated wood protect against rotting?

Well, wooden equipment needs protection from natural factors such as rotting and pests. Pressure treated wood comes with a top-level of preservation. Any wood that has undergone this process has every chance of defying rot and pests, the question is:

Can pressure treated lumber be soaked in water?

It does not make the wood resistant to water. Pressure treated lumber, when soaked or splashed with water, gets affected and can lead to the wood cracking, cupping, or bending. You still could prevent that from happening by applying protective layers and coats.

How long do treated pine posts last?

According to the Southern Pine Council you can expect properly treated posts to last many decades. They site a study by USDA Forest Service’s Forest Products Laboratory saying:

What is the retention of treated posts?

Most treated posts are treated to a retention of .40 but you should always ask – just to be safe.

How long do treated posts last?

The treated post that are rated for ground contact are guaranteed for 40 years. Do they really last that long with an end burried in the ground?

Does pressure treated wood rot?

Will pressure treated wood rot if buried? Pressure-Treated Wood Makes the Grade Pressure-treated wood in contact with the ground needs the most protection, and will rot in just a few years if you use the wrong grade. If your wood will touch the ground or be buried, you should get the highest grade you can, up to .

Can pressure treated decking rot in concrete?

One may also ask, will treated wood rot in concrete? Pressure treated wood will eventually rot in concrete. not nearly as quickly as untreated, but it WILL eventually.

How long does PT lumber last?

I don't have a source or a link (you could check with manufactures) but I've been told that PT lumber will last at least 20 years buried in the ground.

How long does black dirt last?

It depends on the type soil & overall moisture content, in Limestone or black dirt here they will last seems like forever, up east I dought very long because of the moisture in the ground.

Why don't landscape timbers last?

The reason landscape timbers don't really last is because they are just dipped in the chemical solution instead of being pressure treated, where the wood is placed in large sealed tanks where the solution is forced into the wood by pressure. Hence the name "pressure treated.".

What to put in the bottom of a sank post?

Good point. When I sank my posts, I put a couple of shovels of coarse gravel in the bottom of the hole first.

Can I put roof coating on buried posts?

I apply a coating of roof coating to all my buried treated posts whether I backfill with dirt or concrete ...... also tamp down a shovel of gravel in the hole bottom for drainage ...... some are at 25+ yrs and going strong

Can you use PVC for concrete?

If you can get pvc to use as a 'form' for the crete around your posts it will shield your timbered concrete perfectly from the water in the soil. That would require some massive pvc but is a great way to actually post stuff. But generally, a good mix and a pitch or whatnot treated post will do fine. Just make sure the crete is just below the ground surface if it can freeze (pvc should of course be above), as that can force it up if there is a lot of water present. So I've heard.

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1.How Long Will a Treated 4x4 Post Last in the Ground?

Url:https://upgradedhome.com/how-long-will-a-treated-4x4-post-last-in-the-ground/

35 hours ago Treated 4×4 posts last an average of 20 years in the ground. Some 4×4 posts can last for up to 40 years if you use a surface treatment and the climate is mild. Conditions such as excessive moisture and frequent storms can shorten the lifespan of 4×4 posts.

2.How Long Will A Treated 4x4 Last In The Ground?

Url:https://www.thecoldwire.com/how-long-will-a-treated-4x4-last-in-the-ground/

13 hours ago 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.

3.How long will a treated 4x4 post last in the ground?

Url:https://askinglot.com/how-long-will-a-treated-4x4-post-last-in-the-ground

35 hours ago A treated 4×4 post can endure 20 to 25 years in the ground, depending on how favorable the soil and climatic circumstances are. The weathering qualities or favorableness of the soil, as well as harsh weather conditions, will affect the durability of 4×4 posts in the ground.

4.How long will a treated 4x4 post last in the ground? - Quora

Url:https://www.quora.com/How-long-will-a-treated-4x4-post-last-in-the-ground

16 hours ago Feb 06, 2020 · Then, how long does a 4x4 post last? Depending on the species, cedar may last for about 15-30 years, spruce may last for about 4-7 years, and pine may last for about 5-12 years. One may also ask, how long will a pressure treated 6x6 last in the ground? The treated post that are rated for ground contact are guaranteed for 40 years.

5.electrical - How long will a treated post last in the …

Url:https://diy.stackexchange.com/questions/4868/how-long-will-a-treated-post-last-in-the-ground

3 hours ago Answer (1 of 6): How long a PT 4X4 lasts in the ground is dependent on where you live, your environment. Basically, It won’t last more than half a decade. I’ve seen treated posts that were under a roof last 40 years. Untreated wood lasts one …

6.How Long Does Pressure Treated Wood Last?

Url:https://woodcritique.com/blog/how-long-does-pressure-treated-wood-last/

20 hours ago Oct 11, 2016 · A PT post will last a long time in concrete, maybe 5 to 10 years in soil alone. I suggest you embed the post in concrete, trowel a peak around the post so water runs off, and don't let the PT post come in contact with the ground. If you find the RV posts I mentioned earlier, they are steel, treated and when put in concrete will last 25 years or more.

7.Life Span of Pressure Treated Posts - Lumber Talk

Url:http://www.lumbertalk.com/2008/05/08/life-span-of-pressure-treated-posts/

21 hours ago Under favorable conditions, a 4×4 pressure-treated wood should last for 20 to 25 years. But this duration can increase to above 40 years if you mount the treated 4×4 wood in a cement ring instead of the soil. Several factors can make your 4×4 treated wood degrade prematurely. A good example is humidity.

8.How long will a treated 6x6 last in the ground?

Url:https://askinglot.com/how-long-will-a-treated-6x6-last-in-the-ground

18 hours ago May 08, 2008 · They claim that posts coated at the ground line with their poly coating will last fifty years.? In reality, the posts should last 150 years because the ground line is the source of infestations and the place where decay begins.? If that is protected, you don’t have much else to worry about. The bottom line is that the life span of properly treated posts should be at least …

9.How long will treated 4x6 or 6x6 last underground?

Url:https://www.survivalistboards.com/threads/how-long-will-treated-4x6-or-6x6-last-underground.185388/

16 hours ago Mar 03, 2020 · Secondly, how long will 4x4 post last in the ground? If you find the RV posts I mentioned earlier, they are steel, treated and when put in concrete will last 25 years or more. It will not last long (7 yrs max) if the bottom of the post is wet. If you place stone at the base of the post, it should last 20+ yrs.

10.Videos of How Long Will A Treated 4x4 Post Last in The Ground

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36 hours ago Jul 02, 2020 · In a few more years I will have to replace them. I think there is different types of treated lumber, some better than others. I think in-cased in cement or at least not touching the ground might last 20 or more years. Save.

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