4x4 Post Shields

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  • Regular price $9.99

Shipping Pricing

Amount Spent Shipping Cost
$0.00 – $15.00 $4.95
$15.01 – $39.98 $8.95
$39.99 – $74.99 $13.95
$75.00 and up FREE


Measurement Guide

4x4 Post Shields are designed to fit the standard 4x4 labeled post.  The standard 4x4 post is 3.5" x 3.5".  There are few exceptions so please measure your post to verify its size before purchasing.  New treated posts are usually wet and swollen from the treatment process, but they will soon dry out and shrink to the 3.5" x 3.5" standard post size.


Post Shields, shield the base of posts such as mailboxes, fences, decks etc. They are 4 individual shields that join together to cover and protect existing or new posts from string trimmers and other lawn care equipment. They install in seconds with no tools necessary and their visually pleasing design adds a luxurious and finished look while saving time and money on unneeded maintenance.

You can now affordably protect your posts and maintain the beauty of your home with Post Shields. If your posts have already taken a beating, you can use Post Shields to cover and immediately stop further destruction

1 Post Shields order quantity provides protection for 1 post.

WARNING: Cancer and Reproductive Harm – www.P65Warnings.ca.gov

Customer Reviews

Based on 89 reviews
Stephanie Molnar
Measure your posts

Hi! This is such a great idea. I was disappointed, however, in your Amazon listing, as it wasn't super-clear that these are for 3.5-inch posts. We have an old installation that uses actual 4x4s and they don't fit. I see here on your actual site "measure your posts". I just want to say--seriously. Measure your posts.

C Holdaway
Nice solution

We will stop slicing up our deck supports by using these! Fairly easy install.

F Harris
Great Products! Work Perfectly! Easy to Install!

I first bought the shield for my 4x4 mailbox post to keep from taking the paint off while weedwhacking. I later bought the round shield for my lamppost after I repainted it. Both have worked flawlessly! I have now bought both the 4x4 and round shields for my son to use at his house as he prepares to repaint his mailbox and lamp posts.

Love the mailbox post protector

Love it… great idea.

Eric Blake
Saved my deck posts before it was too late

You can see the severe damage to my deck posts, which is now protected from the yardmen's whittling.