Are you planning to buy black plastic post caps, and are you confused about the options ? This page is just for you.

Our review process: Show/Hide

Our Top Picks:

Best Overall: Buy: Nuvo Iron Post Cap READ REVIEW

Best For Perfect Fit: Buy: Jsp Manufacturing Black Plastic Post Cap READ REVIEW

Best For Table Legs: Buy: Prescott Plastics Black Plastic Post Cap READ REVIEW

Best For Easy Installation: Buy: Wearpro Post Caps Black Plastic Post Cap READ REVIEW

Best For Nails: Buy: Jsp Manufacturing Black Plastic Post Cap READ REVIEW

Best For Wooden Fence Post: Buy: Wearpro Post Caps Post Cap READ REVIEW

Best For Nice Look: Buy: Plum Fittings Black Plastic Post Cap READ REVIEW

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

Best For Durable Plastic: Buy: Plum Fittings Black Plastic Post Cap READ REVIEW

Best For Quick Install: Buy: Nuvo Iron Black Plastic Post Cap READ REVIEW

Best With Wood Post: Buy: Natikon Black Plastic Post Cap READ REVIEW

Best Overall: Nuvo Iron Post Cap

Buy on Amazon

Compared with other caps in this category, the Nuvo Iron Post Cap has a design with broader appeal. The nuvo iron post cap looks nice, fits very well, it looks great and has a solid design. Extends the life of your fence or deck post while preventing cracking, splitting and weathering. Further, it is green, it is good for fast delivery and has a good design.

The cap looks good, it fits well and has a simple design. Above all, the nuvo iron post cap looks very nice, is solar, it can be used for customer service and has a purpose design.

Almost all buyers quickly discovered that the cap is easy to install, they’re great, heavy - duty quality. Moreover, a few also found that the cap fits the end of a 4-4, so inside i.d. Further, they also found that the cap would fit a post 5 1/2 inch square perfectly. Therefore, customers were very happy to recommend it to friends and would-be buyers.

• This is designed for posts with true dimensions of 5.5"x5.5.
• It looks very solid, it is great for even on Amazon and has an attractive design.
• This looks like new plus it comes with 2 screws per cap.
• This is perfect fit, nice looking, protects post from rain.

Best For Perfect Fit: Jsp Manufacturing Black Plastic Post Cap

Buy on Amazon

The Jsp Manufacturing Black Plastic Post Cap is suitable and reliable and fits well with your daily purpose. The jsp manufacturing black plastic post cap is worth the price and it is designed for stainless steel. Inside dimension 3-5/8" x 3-5/8" square, 1/8-inch-thick to protect your treated posts from water and sun damage. These caps for nominal 4x4 fence post that measures 3-5/8"x 3-5/8.

The cap is best with a reasonable price and it looks great. Above all, the jsp manufacturing black plastic post caps is green and it is solar.

Almost all buyers found that the cap will dress the post tops for you. And, they also found that the cap fit right on top without screws or anything. To sum up, buyers found this to be one of the best cap for daily purposes.

• This is a perfect fit for 4x4 posts.
• 4X4 (3-5/8" x 3-5/8") plastic black fence post caps - 16 pack.
• This is a perfect fit ... good sturdy construction.
• These fit over standard 4 x 4 posts with a little extra space.

Best For Table Legs: Prescott Plastics Black Plastic Post Cap

Buy on Amazon

If you often find yourself scrambling for an appropriate and satisfactory cap, prescott plastic black plastic post cap should be your first option for buying. And, the prescott plastic black plastic post cap looks good, as well, and it is made with fast shipping. Make sure this fits by entering your model number. These plastic plugs are specially designed and produced in the USA to maintain quality, endurance and durability. Finally, the prescott plastic black plastic post cap is available in white and black colors.

Almost all customers agree that the cap can be used on an outdoor cafeteria patio as they were upgrading. In addition, they strongly agree that the cap fits with little effort, plus it is perfect over exposed pipes.

• This comes with the correct size and it is the true size.
• This fits perfectly on both sides of the sight that are 1" diameter.
• This works as advertised and it looks great.

Best For Easy Installation: Wearpro Post Caps Black Plastic Post Cap

Buy on Amazon

Not everyone likes to purchase caps for their daily use but the Wearpro Post Caps Black Plastic Post Cap would be an anomoly. The wearpro post cap black plastic post cap fits 3.5" x 3.5" (4" nominal) standard wood post. Please measure your posts prior to ordering. Moreover, it works well with glossy paint, it is made with great service and has an attractive design.

The cap looks really nice, it fits fine and has a classy style. In addition, the cap is maintenance free, is great with fast shipping, it is great for customer service and has a clean design. Lastly, the wearpro post cap black plasticpost cap is solar, provides for easy installation, It is very nice and has a simple design.

Most buyers found that the cap fits perfectly on the 4x4 post. Also, they also found that the cap looks great, are very sturdy, and are extremely easy to install. Moreover, they say that this cap is perfect to improve appearance and, most importantly, to lengthen the life of the post by keeping water out of the end grain. Overall, most customers agree that the cap is functionally comfortable and no one questions it.

• This covers 5/8” of an inch.
• This is made of sturdy cast aluminum.
• This is the right choice for an old or new fence.
• This fits a standard 4x4 mailbox, deck, lamp post, dock and piling posts.

Best For Nails: Jsp Manufacturing Black Plastic Post Cap

Buy on Amazon

Jsp Manufacturing line of caps comes in a pretty wide variety of styles, so you can definitely find one that suits your individual preferences and needs. The Jsp Manufacturing Black Plastic Post Cap is great with fast shipping, it looks good, it provides great value and has a good design. Please make sure to measure your post. Moreover, this is great for a great price, It adds additional decking and has a durable design.

The cap looks great, is designed for a good fit, It allows for a great look and has a clean design. Above all, the jsp manufacturing black plastic post cap is highly recommended and it looks great.

Almost all customers agree that the cap can be painted, must use paint that adheres to plastic. In addition, a few also found that the caps are held on with a roofing nail. Moreover, they strongly agree that the cap fits with the inside diameter of the cap. With no doubts, this cap passed the test and had very satisfied buyers eager to share their experience.

• 6X6 (5-5/8" x 5-5/8") plastic black fence post caps - quantity: 10 pack.
• This, as well, is solar and has an attractive design.
• This can be painted, must use a paint that adheres to plastic.
• This works well for 6x6, plus it fits nicely on 6x6 posts.

Best For Wooden Fence Post: Wearpro Post Caps Post Cap

Buy on Amazon

If you often find yourself scrambling for an appropriate and satisfactory cap, Wearpro Post Caps Post Cap is your end point. The wearpro post caps postcap looks good and has a good design. Make sure this fits by entering your model number. Also, it is good for lifetime warranty, it is decorative and has a solid design.

The cap is used for a perfect size, It looks great and has an attractive design. Finally, the wearpro post caps post cap is made of sturdy cast aluminum.

Most buyers quickly discovered that the cap includes 2 wooden screws plus it fits snugly on top of the 4x4. In addition, they also found that the caps are fairly loose on on a standard 4x4 which is 3 1/2 x 3 1/2. Also, a few say that this post cap is 3-5/8" x 3-5/8" as most 4x4's are 3-1/2" square. In short, buyers found this to be one of the best cap for daily purposes.

• These are not tight or snug to install.
• This will fit a post that has nominal 4x4 or 3.5x3.5” dimensions.
• Why buy plastic when you can install aluminum ?.
• [Ornamental] decorative & attractive - classy look dresses up your fence, deck or dock!.

Best For Nice Look: Plum Fittings Black Plastic Post Cap

Buy on Amazon

For a low asking price, Plum Fittings Black Plastic Post Cap has managed to overwhelm their customers by packing as many features as they could. The plum fittings black plastic post cap is great for the perfect size as well. Make sure this fits by entering your model number. These caps are weather resistant and will not fade, warp, discolor, rust, or rot over time to ensure long-lasting use.

Lastly, the plum fittings blackplastic post cap allows for easy installation and it works great.

"They are plastic and they look and fit great. " - says, one customer. To sum up, for almost all buyers, the cap was just what they wanted.

• Fit: a true 2" x 2" square for external fit.
• Pack size: 8 black plastic postcaps.
• This is designed to fit a 2" x 2" square post.

Best For Black Plastic: Tongass Black Plastic Post Cap

Buy on Amazon

We would, of course, be remiss if we didn't mention Tongass Black Plastic Post Cap for daily purpose. The tongass black plastic postcap 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. The Manufacturer says: Made from thick, highly durable, and weatherproof plastic, our plasticpost caps are uv and heat-resistant, impact-resistant, and waterproof. These plastic postcaps don’t look tacky.

Lastly, the tongass black plastic post cap is easy to install and secure fence post caps.

"These fit only three and a half inch 4x4's so check your 4x4's first. " - says, one customer. In short, many buyers have used the tongass blackplastic post cap for more than a few months without any issues, and it shows no sign of giving up.

• This is probably the most affordable pack of fence post plastic caps in the market.
• Delivers what they promise.

Best For Durable Plastic: Plum Fittings Black Plastic Post Cap

Buy on Amazon

The plum fittings and black plastic post cap have killer features for the price point. In addition, the cap is designed to fit 1 1/2" x 1 1/2" square aluminum fence. Make sure this fits by entering your model number. Most importantly, the Plum Fittings Black Plastic Post Cap is made from high-quality and durable plastic that is weather resistant and will not fade, rust, or rot over time.

• Pack size: 8 black plastic postcaps.
• Good investment for the long term.

Best For Quick Install: Nuvo Iron Black Plastic Post Cap

Buy on Amazon

The Nuvo Iron Black Plastic Post Cap's material feels more premium than its price would suggest. The nuvo iron black plastic post cap is made for easy install, It is ideal for contractors and has an elegant design. Looking for an attractive addition to your outdoor space. Also, the cap is solar, it looks great and has a good design.

The cap is perfect for contractors and diyers. Above all, the nuvo iron black plastic post cap is the provider of iron fences and ornamental accessories in North America.

Almost all buyers found that the cap is easy to attach to the standard 6x6. In addition, they strongly agree that the cap is easy to install, and durability. Also, a few say that the cap fits over a nominal 6x6 post. In short, at the price, they believe that they got a steal of a deal with it.

• Manufacturer says: We set out twenty years ago with a simple yet clear goal.
• Manufacturer says: we provide variety, flexibility and exceptional service for any fencing project.
• Fits over 6 x 6" nominal posts".
• Manufacturer says: we provide a modern and reliable product lineup which is always growing.

Best With Wood Post: Natikon Black Plastic Post Cap

Buy on Amazon

Best part: Natikon Black Plastic Post Cap costs comparatively cheap and it is available to ship in 24 hours. Make sure this fits by entering your model number. Perfectly designed to protect your posts from water and sun damage. The cap is easy to maintain and use.

• Inside dimension 2" x 2" / outside dimension: 2.20" x 2.20".
• Premium quality with smooth seamless finish.
• One of the newcomers and featured product.