Top 10 Fence Post Caps 4×4 Wood – Decking Caps

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1. Deckorators

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Deckorators 72213 Newport Classic Treated Post Cap 4x4

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Deckorators #ad - Inside dimensions are 3-5/8” x 3-5/8”. Pressure treated for durability. For use with posts measuring 3-1/2 inch x 3-1/2 inch. Measures 4” x 4”.
BrandDeckorators #ad
ManufacturerDeckorators #ad
Height3 Inches
Length6 Inches
Width6 Inches
Part Number72213
Model72213
Warranty90 day limited warranty

2. JSP Manufacturing

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JSP Manufacturing Plastic New Fence Post Black Caps 4X4 3 5/8" Pressure Treated Wood Made in USA MULITPACK Wholesale Bulk Pricing 24

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JSP Manufacturing #ad - Can be painted, must use a paint that adheres to plastic. Please take time to measure your post not all 4x4 post are the same dimension. 4x4 3-5/8" x 3-5/8" plastic black fence post Caps ~ Multi-pack Quantity Item - Please verify correct quantity needed.

Fence post plastic black caps for nominal 4X4 fence post that measure 3-5/8"x 3-5/8" ~ See images for comparison. Important: your post must measure 3-5/8" x 3-5/8" -if you post measures a true 4x4, this cap will not fit, please see our additional listing for True 4x4 100mm Fence Cap. Size: inside dimension 3-5/8" x 3-5/8" square ~ 1/8-inch-thick to protect your treated posts from water and sun damage. Installation: must be secured with nails or an adhesive that bonds to plastic and wood, should be pre-drilled if securing with nails. Cap presses over the outside of a 4x4 Post, a little flex but will not stretch.
BrandJSP Manufacturing #ad
ManufacturerJSP Manufacturing #ad
Height50 Centimeters
Length100 Centimeters
Weight100 Kilograms
Width100 Centimeters

3. TonGass

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TonGass 24-Pack 4x4 3 5/8" Fence Post Caps, Protect Wooden Fence Poles Outdoor in Low Profile, Made from Black Durable Plastic

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TonGass #ad - Easy to install and secure fence post caps - the black caps will slip easily on top of the posts. 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. For both nails and screws, the caps will flex enough to fit, you’ll need to drill a pilot hole in at least two sides of the caps.

There won’t be fading, our plastic post caps are UV and heat-resistant, highly durable, impact-resistant, and weatherproof plastic, cracking for years to come!. And the best part? These plastic post caps don’t look tacky. Made from high-quality and durable plastic - fence post plastic caps need to withstand extreme changes in weather. Even when the post is a few millimeters bigger, and adhesive. Black plastic post caps for 4x4 3 5/8” fence posts - most 4x4 fence posts actually have nominal dimensions of 3 1/2 inches by 3 1/2 inches.

8 more fence post caps for the same price - this is probably the most affordable pack of fence post plastic caps in the market! For the same price as 16-pack fence post caps, you have 24 plastic caps you can use both on your fence and deck posts! With their sleek and timeless appeal, these fence post caps will definitely add a stylish touch to your home’s exterior. Moisture seeping into the end grain can easily half the posts’ lifespan. Once planed, each side would be around 3 5/8 inches. There are 3 options in securing the caps to the posts: nails, ensure that said adhesive will bond on both plastic and wood.
BrandTonGass #ad
ManufacturerTonGass #ad
Part Number4" x 4"

4. Deckorators

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Deckorators 72889 Newport High Pyramid Treated Post Cap

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Deckorators #ad - For use with posts measuring 3-1/2 inch x 3-1/2 inch. Inside dimensions are 3-5/8” x 3-5/8”. Measures 4” x 4”. Durable pressure treated base.
BrandDeckorators #ad
ManufacturerDeckorators #ad
Height3 Inches
Length6 Inches
Weight0.5 Pounds
Width6 Inches
Part Number72889
Model72889
Warranty90 day limited warranty

5. GreenLighting

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GreenLighting 4x4 Aluminum Pyramid Post Cap Cover for Nominal Wood Posts Brown, 8 Pack

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GreenLighting #ad - Greenlighting has kept it simple by providing you with pre-drilled bases and all the mounting screws needed to get your cap set up right out of the box. Specifications - measures 3. 63" x 3. 63"and is designed to fit a 4" x 4" nominal wood post.

Durable aluminum construction- once installed, these metal post caps are practically maintenance free! The weather resistant aluminum construction is designed to handle the outdoor elements, and features a powder-coated finish to add a touch of style to any spot in your backyard. Not suitable for PVC or Vinyl posts. But with the quick addition of a post cap, you can add a touch of style to your fences or walls to make them really stand out.

Simple install - stop messing around with those complicated installations. This set includes eight post caps. Dress up your yard - let's be honest, fences can be boring and not the best item in your yard to look at. Designed for wood posts - designed to specifically fit on a 4 x 4 nominal wood post, the GreenLighting Aluminum Pyramid Post Cap is your one-stop solution for dressing up those plain fences.
BrandGreenLighting #ad
ManufacturerGreenLighting #ad
Height9.75 Inches
Length4.75 Inches
Weight2.38 Pounds
Width4.75 Inches
Part NumberTN-1219664

6. JSP Manufacturing

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JSP Manufacturing 16 Pack Fence Post Plastic Black Caps 4X4 3 5/8" Pressure Treated Wood Made in USA

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JSP Manufacturing #ad - Must be secured with nails or an adhesive that bonds to plastic and wood, should be pre-drilled if securing with nails. Cap presses over the outside of a 4x4 3-5/8" x 3-5/8" post, a little flex, but will Not Stretch.

Please take time to measure your post not all 4x4 post are the same dimension. Dimensions - measures approximately: inside dimension: 3-5/8” x 3-5/8 inches; Inside Total Depth of Cap: 1-1/4 inches; Slant Width: 1 inch; Inside Cap Edge Height Edge that Covers Post: 1/2 inch. 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 measure 3-5/8"x 3-5/8". 4x4 3-5/8" x 3-5/8" plastic black fence Post Caps - 16 Pack.
BrandJSP Manufacturing #ad
ManufacturerJSP Manufacturing #ad
Weight1.23 Pounds
Part NumberFBA_FC-4x4-BLACK-16
ModelFBA_FC-4x4-BLACK-16

7. WeatherPRO Post Caps

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Dock, Piling Caps, Lamp Post, 4x4 Fence Post Cap 3 1/2" 4 Pack White Powder Coated Aluminum, Mailbox, Deck, Replacement Guarantee

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WeatherPRO Post Caps #ad - Fit fits 3. 5" x 3. 5" 4" nominal standard wood post. Why buy plastic when you can install aluminum? Protects our aluminum fence post caps won't deteriorate or warp like wood, plastic or resin will.

Pyramid design also fits standard 4x4 mailbox, lamp post, deck, dock and piling posts. Protects your post tops from rain and sun to prevent premature rotting! Warranty lifetime warranty by weatherPRO Post Caps. Multi-pack 4 four gloss white powder Coated Post Caps with screws made of sturdy cast aluminum. Ornamental decorative & attractive - Classy look dresses up your fence, deck or dock! Please measure first - does not fit TRUE 4"X4" POSTS.
BrandWeatherPRO Post Caps #ad
ManufacturerWeatherPRO Post Caps #ad
Height50 Centimeters
Length100 Centimeters
Weight100 Kilograms
Width100 Centimeters
Part NumberFPC5

8. WeatherPRO Post Caps

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Never Have to Replace These Premium Post Caps Made with Solid Aluminum. Powder Coating Never Fades, Sold by U.S. Company., WeatherPRO Black 4x4 Fence Post Caps 3.5” 4 Pack

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WeatherPRO Post Caps #ad - Ornamental decorative & attractive - Classy look dresses up your fence, deck or dock! Multi-pack 4 four gloss black powder Coated Post Caps with screws made of sturdy cast aluminum. Pyramid design also fits standard 4x4 mailbox, deck, lamp post, dock and piling posts. Protects your post tops from rain and sun to prevent premature rotting! Warranty lifetime warranty by weatherPRO Post Caps. Why buy plastic when you can install aluminum? Protects 4x4 aluminum fence post caps won't deteriorate or warp like wood, plastic or resin will. Fit fits 3. 5" x 3. 5" 4" nominal standard wood post.
BrandWeatherPRO Post Caps #ad
ManufacturerWeatherPRO Post Caps #ad
Part NumberFPC1

9. POWGDLT

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Deck or Garden Decoration, POWGDLT Solar Post Cap Lights Outdoor 10 Lumen Double LED Fence Post Solar Powered Waterproof Light-One-Fits-All Base for 4x4 or 5x5 Wood Posts in Patio, 12 Pack Black

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POWGDLT #ad - Easy to installthe solar post cap lights 5. 2" x 5. 2" x 3. 9". Avoid the cost of hiring electricians or handymen, the base is fixed by the provided screws, no need to connect wires, environmental protection and saving.

Our single base fit any 3. 5-5 inch square or round wooden post. It will withstand harsh heat, and snow. See product images. Ip44 waterproofsolar fence post light has an ip44 waterproof rating and is made of tough ABS plastic. Fit baseif the universal base doesn't like it, we can ship the corresponding base. Beauty by designthese bungalow style post cap lights add radiance and distinction to gardens, or decks, yards, creating a well-lit path to your outdoor environment.

Even in the daytime, it is a good decoration. You can rest assure to use, heavy downpour, in any outdoor environments. What you getbrand-new product, Excellent quality, Support 30-days worry-free refundand and friendly customer service. One size fits all wooden posts come in all shapes and sizes.
BrandPOWGDLT #ad
ManufacturerPOWGDLT #ad
Height3.86 Inches
Length5.24 Inches
Width5.24 Inches
ModelSL1717-12P

10. WeatherPRO Post Caps

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Replacement Guarantee, Mailbox, Deck, Piling Caps, Lamp Post, Dock, 4x4 Fence Post Cap 3 1/2" Single Pack Black Powder Coated Aluminum

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WeatherPRO Post Caps #ad - Pyramid design also fits standard 4x4 mailbox, lamp post, deck, dock and piling posts. Protects 4x4 aluminum fence post caps won't deteriorate or warp like wood, plastic or resin will.

Fit fits 3. 5" x 3. 5" 4" nominal standard wood post. Single-pack 1 one gloss black powder Coated Post Cap with screws made of sturdy cast aluminum. Ornamental decorative & attractive - Classy look dresses up your fence, deck or dock! Protects your post tops from rain and sun to prevent premature rotting! Warranty lifetime warranty by weatherPRO Post Caps. Please measure your posts prior to ordering. Why buy plastic when you can install aluminum? .
BrandWeatherPRO Post Caps #ad
ManufacturerWeatherPRO Post Caps #ad
Part NumberFPC8