There are plenty of options available while buying 4x4 plastic post caps in the market right now, and if you're confused regarding which one to go for, This page is just for you.

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Our Top Picks:

Best Overall: Buy: Jake Sales 4X4 Plastic Post Cap READ REVIEW

Best For Great Price: Buy: Fence Supply Online 4X4 Plastic Post Cap READ REVIEW

Best For Easy Fit: Buy: Wearpro Post Caps 4X4 Plastic Post Cap READ REVIEW

Best For Thick Plastic: Buy: Jsp Manufacturing 4X4 Plastic Post Cap READ REVIEW

Best For Right Size: Buy: Custom Fence 4X4 Plastic Post Cap READ REVIEW

Best For High Quality: Buy: Gkoled 4X4 Plastic Post Cap READ REVIEW

Best For Black Plastic: Buy: Tongass 4X4 Plastic Post Cap READ REVIEW

Best With Hole: Buy: Bfseals 4X4 Plastic Post Cap READ REVIEW

Best Overall: Jake Sales 4X4 Plastic Post Cap

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The Jake Sales 4X4 Plastic Post Cap's material feels more premium than its price would suggest. The jake sales 4x4 plastic post cap is made of durable, low-maintenance vinyl. Post caps add a finishing touch to your vinyl fence. In addition, this fits 4" x 4" vinyl/pvc posts.

Most importantly, the jake sales 4x4 plastic post cap is highly recommended and I found these on amazon.

Almost all buyers quickly discovered that the cap had stayed on through 40mph winds so far with no issues. In addition, a few also found that the cap measures closer to 3-1/2" x 3-1/2" actual. Further, a few say that the cap fits the 4×4 post, the top is larger and decorative 5×5. In short, for most buyers, the cap was just what they wanted.

• This can be trusted for good quality and it is very sturdy.
• ✔ you need to measure the vinyl post outside diameter prior to purchase!.
• The vinyl sleeve has about a 3 - 5/8 " i.d.
• This fits snug not loose and also it is easy to paint and install.

Best For Great Price: Fence Supply Online 4X4 Plastic Post Cap

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Next on the list, we've got yet another cap that manages to win our hearts. It's the Fence Supply Online 4X4 Plastic Post Cap and it's widely considered as one of the most convenient caps you can buy. The fence supply online 4x4 plastic post cap is great with great quality, is worth the money and it looks good. Take time to measure your post. Not all 4x4 posts are the same dimension. These black fence post caps are for a standard 4x4 wood fence post (3.5"x3.5") This cap measures 3 5/8"x 3 5/8.

The cap is 1/8” or 0.125” so a 6d or 11 gauge nail 2 inches long should be fine. Finally, the fence supply online 4x4 plastic post cap is very nice and it makes for nice quality.

Most customers found that the cap will protect the cut post from rotting along with wood preservative. In addition, a few say that the cap can be painted with krylon to meet any look. With no doubts, this cap passed the test and had very satisfied buyers eager to share their experience.

• Really, adhesion is not a problem, one screw secures the cap forever.
• This is made in usually easy nails or screws on.
• This is really nice, as well, and it is useful.
• This has black spray, it looks great and has great style.

Best For Easy Fit: Wearpro Post Caps 4X4 Plastic Post Cap

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We know from years of feedback from readers, amazon sellers, and family and friends what most people want in a convenient and appropriate cap. The Wearpro Post Caps 4X4 Plastic Post Cap is exactly that - it's a simple cap that hits all the right notes. The wearpro post cap 4x4 plastic post cap fits a standard 4x4 mailbox, deck, lamp post, dock and piling posts. Protects your posttops from rain and sun to prevent premature rotting. Moreover, it is made with great quality, is very nice, it is designed for really high quality and has an attractive design.

The cap is made of sturdy cast aluminum. Above all, the wearpro post caps 4x4 plastic post cap is great for quick install, It is great for perfect size and has a solid design.

Almost all buyers opine that the cap is perfect and is very easy to keep attached with the two included screws. Further, they say that the cap is made with an easy fit to post. Moreover, a few say that the cap fits standard 4x4 nominal posts, which are less than 4" by 4. To sum up, most buyers agree that the cap suits them best, and no one questions it.

• This will fit a post that has nominal 4x4 or 3.5x3.5” dimensions.
• This fits 3.5" x 3.5" (4" nominal) standard wood post.
• This is designed to fit a 3 1/2 x 3 1/2 " post.
• This can vouch for sturdy construction and it is worth the money.

Best For Thick Plastic: Jsp Manufacturing 4X4 Plastic Post Cap

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The Jsp Manufacturing 4X4 Plastic Post Cap might be a relatively new release, but it's still nothing short of impressive this year, thanks to multiple price cuts and added new features over the past few months. The jsp manufacturing 4x4 plasticpost cap is best with a reasonable price, is available in both black and it looks very nice. If your post measures less than 4x4, 4x6, or 6x6, then it is a nominal post. These fence post plastic white caps are for nominal 4x4 fence post that measure 3-5/8"x 3-5/8.

The cap looks great and it is used for nails or glue. Most importantly, the jsp manufacturing 4x4 plastic post cap installed easily, is very sturdy and it makes for nice quality.

Most buyers quickly discovered that the cap looks good for being so inexpensive. Moreover, a few strongly agree that the cap is easy to install with a couple of nails. In addition, a few also found that the exact inside dimension of this cap is 3 5/8 " x 3 5/8.

• This can be painted, must use a paint that adheres to plastic.
• This is perfectly over 3.5 inch x 3.5 inch deck posts.
• This is easy to install, and the sealant/adhesive holding them on, should perform admirably.
• This is built for easy installation, is perfect for heavy duty and it fits well.

Best For Right Size: Custom Fence 4X4 Plastic Post Cap

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Best part: Custom Fence 4X4 Plastic Post Cap costs comparatively low and it is available to ship in 24 hours. The custom - fenced 4x4plastic postcap looks great and has great style. Add a classic look to your vinyl fence, mailbox post, or deck by having this high-quality New English style post cap. The design of this cap is tappered on the inside to allow for a snug fit around the post.

The cap is easy to install and is designed to fit a 4" x 4" vinyl post. Most importantly, the custom fence 4x4 plastic post cap is made from high-quality white vinyl that is built to withstand the elements.

"Matched 18yr old fence cap perfectly. " - says, one customer. Without any doubt, this cap passed the test and had very satisfied buyers eager to share their experience.

• This is perfect for the right size and it can be found for a decent price.
• Pack size: one New England styled post cap.
• Color and style: white New England post cap.
• This is designed for the perfect match and has a classic design.

Best For High Quality: Gkoled 4X4 Plastic Post Cap

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Compared with other caps in this category, the Gkoled 4X4 Plastic Post Cap has a convenient design. The gkoled 4x4 plastic postcap provides for easy installation and it works great. If you have any questions, please message us. Further, this does the job, is designed for a great price and it has led lighting.

Lastly, the gkoled 4x4 plasticpost cap comes with an easy-to-install pyramid cover designed to fit standard 4" x 4" vinyl posts.

Most buyers found that the cap is designed for a 4x4 posttop (actual dimensions 3-1/2 by 3-1/2 inches) and press-fits that nicely.

• This white pyramid post cap looks very exclusive.
• This is high-quality and reliable, plus it is made of durable, low-maintenance vinyl.
• This is made for outdoors (not included) and slides over fence post.

Best For Black Plastic: Tongass 4X4 Plastic Post Cap

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If you often find yourself scrambling for a convenient and suitable cap, Tongass 4X4 Plastic Post Cap should be your first option for buying. The tongass 4x4plastic post cap is easy to install and secure fence post caps. For both nails and screws, you’ll need to drill a pilot hole in at least two sides of the caps. These plastic postcaps don’t look tacky.

Lastly, the tongass 4x4 plastic post cap comes with inside dimensions of 3 5/8 inches by 3 5/8 inches and an edge height of 1/2 inch, These black plastic fence post caps will fit perfectly on most fence posts.

"Great for covering your deck post tops. " - says, one customer. To sum up, most buyers call the cap suits best, and no one questions it.

• This is probably the most affordable pack of fence post plastic caps in the market.
• Good investment for the long term.

Best With Hole: Bfseals 4X4 Plastic Post Cap

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For a low asking price, Bfseals 4X4 Plastic Post Cap has managed to overwhelm their customers by packing as many features as they could. The bfseals 4x4 plastic postcap comes with quality caps, is strong and it can be bought for good value. For the wood 4"x4" post you must use a 3.5"x3.5" cap. This post cap only fits posts measuring 4 x 4 inches. Lastly, the bfseals 4x4 plastic post cap is suitable for thick plastic, as well, and it fits perfectly with the correct size.

In short, many customers have used the bfseals 4x4 plastic post cap for more than a few months without any issues, and it shows no sign of giving up.

• Manufacturer says: We also have the following measures.
• Plastic post cap 4 x 4 inches, made in the USA.
• Good brand reputation.