Internet #203165674

Model #4442

4 in. x 4 in. x 42 in. In-Ground Fence Post Decay Protection

  • In-Ground Post Decay Protection for posts in soil or concrete
  • Simple installation and Post Longevity increased by 250%
  • Pole Barn, Deck, Fence, Pergola, Mailbox, any post-foundation job
  • See More Details

Frequently Bought Together

Product Overview

For 18-years, Post Protector has provided simple, slide-on barrier protection for in-ground posts. It works in conjunction with the chemical preservative as an important additional layer of protection against soil-dwelling and atmospheric decay fungi and insect infestation. Its first important to understand decay. Many believe that moisture CAUSES decay. Moisture is not the cause of decay but is 1 of 3 conditions needed for decay to occur. The conditions: 1 Moisture, 2 Oxygen and 3 Suitable temperature. These conditions enable the soil-dwelling or atmospheric decay fungi, as well as termites and other subterranean insects, to feed on the wood fiber. So the Decay/Degradation of ground-contact wood is not CAUSED by moisture but by the action of wood destroying organisms feeding on the wood. The chemical preservatives protection strategy is to poison the wood fiber, rendering it an unsuitable food source for the wood destroying organisms. The downside to that approach is that all chemical preservatives eventually lose resistance to decay and insect infestation. Post Protector becomes the perfect complement to the pressure treated (or cedar) post by simply providing a physical barrier isolating the post so the wood-destroying organisms have NO access to the post.
  • Simple slide-on installation
  • Perfect for both Pro and DIY
  • Speed, affordability, strength of a direct burial post while wood destroying organisms have no post access
  • HDPE lightweight, flexible and strong, 449-years of in-ground service life
  • Integral drainage feature
  • Minimizes chemical leaching into the environment
  • Attractive appearance-rich clay tone color with wood grain texture
  • Easily trims to desired height
  • Stronger, faster and less expensive than concrete pier and bracket method
  • Weed-eater protection
  • Can also be used to create a removable in-ground post
  • Toll free tech-line for expert product information/installation assistance

Info & Guides

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4 in. x 4 in. x 42 in. In-Ground Fence Post Decay Protection
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BrandPost ProtectorPost ProtectorPost ProtectorPost Protector
Name4 in. x 4 in. x 42 in. In-Ground Fence Post Decay Protection4 in. x 4 in. x 30 in. In-Ground HDPE Fence Post Decay Protection6 in. x 6 in. x 42 in. In-Ground Post Decay Protection4 in. x 6 in. x 60 in. In-Ground Fence Post Decay Protection
Price
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$2099
$2499
$3199
Ratings
(53)
(12)
(60)
(14)
FeaturesUV ProtectedUV ProtectedUV ProtectedUV Protected
Application TypeCorner,End,Gatepost,Line,TerminalGatepost,TerminalCorner,End,Gatepost,Line,TerminalCorner,End,Gatepost,Line,Terminal
MaterialCompositeCompositeCompositeComposite
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Specifications

Dimensions

Actual post height (in.)
42
Actual post thickness (in.)
3.625
Actual post width (in.)
3.625
Product Depth (in.)
4
Product Height (in.)
42
Product Width (in.)
4

Details

Application Type
Corner,End,Gatepost,Line,Terminal
Color Family
Brown
Color/Finish
Brown
Features
UV Protected
Includes
Hardware
Material
Composite
Number of Posts Included
0
Product Weight (lb.)
2
Recommended Fastener
Screws
Returnable
180-Day
Shape
Square

Warranty / Certifications

Manufacturer Warranty
30 day manufacturer defect

Questions & Answers

14Questions34Answers

What experience do you have with these?

Asked by Hucfinn September 4, 2015
5
Answers

Yes, mine were closed on bottom

Any reason these couldn't be set in concrete?

Asked by GardenD July 25, 2015
5
Answers

You could but if you leave open at the bottom for some drainage. Otherwise the post will rot because it sits in standing water. Other things to think about: It is best to have 1/3 of the post below ground and 2/3 above ground. For added strength you could do 1/2 below and 1/2 above. Also for a corner and end post use a 6"x6" or for a long run even an 8"x8". As they are much stronger and will last longer.

If the post opening is 3.75 in. and the post is 3.5 x 3.5,, am concerned/confused about the excess space when the post is inserted. Do I shim or...?

Asked by LJ January 18, 2016
5
Answers

I didn’t see a need in filling up the sleeves, but I did caulk around the top to keep water out

how easy is it to remove a post from the protector?

Asked by Wade October 10, 2015
5
Answers

Yes. I have one installed this way for the past 3 years and it works well. I set it on a 6" stone backfill base with 3-4" of stone backfill around. Drill some water drain holes. I also wrapped the post with 1-2 layers of cardboard so it would really "fill out" the post protector, thus ensuring the pressure of the stone and earth wouldn't compress the protector and make it too hard to take out later.

Will a cedar 4x4 fit inside these since they are slightly larger than a treated 4x4 post?

Asked by RJ March 26, 2020
4
Answers

I have 4x4 cedar posts that I will use with these 4x4 Post Protectors. My posts will fit into these Protectors just fine. A little coaxing will be necessary as the fit is snug.

Sizes 4 x 4 4 x 6: What is the wall thickness? Are the walls rigid or flexible? Do the walls wit...

Asked by Bud June 9, 2020
2
Answers

Like all plastic it has some give.

Do these have a sealed bottom so moisture won't wick up into the post from damp soil

Asked by Bob July 17, 2020
2
Answers

The bottom is sealed, however the installer has to drill 1/8" holes to allow any water that comes in from the top to escape. Put gravel or stones in the bottom of the hole to prevent water build up in the hole.

Is bottom sealed

Asked by Bob July 17, 2020
2
Answers

Application dependent. The reason I say this is I put one in the ground fire clematis, so I followed the directions and drilled drainage holes at the bottom. I now have to put one on a block. I thought at first I may not need to drill the holes, but I am going to do it. You may want to or not want to.

I'll be using Sika Pro Select Fence Post Mix instead of concrete mix. Will the expanding foam th...

Asked by Vic April 21, 2020
2
Answers

That would be a question for the manufacturer. I do not feel it would but manufacturer would know best

Can the post protector be cut to a shorter length? I don’t want the protector sticking up a foot ...

Asked by Piers September 26, 2020
2
Answers

Yes. It is similar to the plastic in Milk containers. Any wood saw will easily cut through it. For fences, you should allow at least 4 - 6" to extend above the ground, anticipating ground debris accumulation

4 in. x 4 in. x 42 in. In-Ground Fence Post Decay Protection - page 2

Customer Reviews

  • 53 Customer Reviews
  • 4.6 out of 5 stars overall
100% of customers recommended.
Overall Ratings
5star-icon(39)
4star-icon(8)
3star-icon(5)
2star-icon(0)
1star-icon(1)
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Love the Post Protectors! The new treated posts just don't last so Post Protector is a necessity!...
Love the Post Protectors! The new treated posts just don't last so Post Protector is a necessity! They go on easy and keep the soil from rotting the wood. GREAT PRODUCT!
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They are easy to install. Just slip them over the bottom of the post and put the post in the gro...
They are easy to install. Just slip them over the bottom of the post and put the post in the ground. I did not screw them in figuring that if the post has a problem I should be able to work the post out without having to pull the post-protector out of the ground.
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Rocky Mount, Va
Great Product and Excellent Service
Quality :
5
Value :
5
I've used these post protectors before building a fence around our organic garden. Didn't want the pressure treated wood to leach into the garden. I also sealed around the tops with 100% silicone. I did have a problem with the order, wrong size sent. I called Home Depot customer service and they got Ken from Post Protectors on to correct. Everyone was very helpful and took care of the mistake right away. This is why I gave them such a good review. Anyone can make a mistake but it's how you handle it that makes a difference. They did just that, Thanks Everyone.
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Very pleased with delivery to store and the product. ...
Very pleased with delivery to store and the product. The inspector was glad to see I used the product.
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Great product. Delivered as expected on time...
Great product. Delivered as expected on time
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Easy to install. Lets see how long it las in...
Easy to install. Lets see how long it las in Florida weather. Only bad thing was the packaging, box was all torn up, good thing these are plastic.
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Small price to pay for the extra protection this product offers. Easy to install, all the screws,...
Small price to pay for the extra protection this product offers. Easy to install, all the screws, washers and instructions are included. I used this on a16" post, it actually made it easier to slide into the hole. I now have a post installed that should last with out any worries, done and forget about it. The protector should aid in weed clean up without damaging the base of the pole. Good, well designed and thought out product.
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Very spendy!! But, you get what you pay for. The post protector is durably built and fits like a ...
Very spendy!! But, you get what you pay for. The post protector is durably built and fits like a glove. The ultimate prolonged post protector.
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Great product easy to install and work with....
Great product easy to install and work with.
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Went on easy. Color matches post paint. Should make my...
Went on easy. Color matches post paint. Should make my swing set posts outlast grandkids
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