Top 10 4×4 Post Caps – Decking Caps

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1. Plum Fittings


32 Pack New Wood Fence Post Black Caps 4X4 3 5/8" for Pressure Treated Wood Made in USA 32

Plum Fittings #ad - Made in the USA. Pack sizes comes in either 32 or 54. Decorative & sturdy: made to be a reliable and sleek addition for any wood deck, fence, dock, or mailbox. Fits: 4x4" wood posts with pre-cut nail hole in place. Color & material: Black, Polypropylene.
BrandPlum Fittings #ad
ManufacturerPlum Fittings #ad

2. Deckorators


Deckorators 72213 Newport Classic Treated Post Cap 4x4

Deckorators #ad - Pressure treated for durability. 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”.
BrandDeckorators #ad
ManufacturerDeckorators #ad
Height3 Inches
Length6 Inches
Weight0.5 Pounds
Width6 Inches
Part Number72213
Warranty90 day limited warranty

3. Fence Supply Online


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

Fence Supply Online #ad - 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. Made in usa easily nails or screws on.

Protect your investment! current pressure treating often does not reach the center of the post. It will flex, crack, and break, . Do not use glue like others recommend for their caps. The hole is 1/8” or 0125” so a 6d or 11 gauge nail 2 inches long should be fine. Take time to measure your post not all 4x4 post are the same dimension. An exposed wood top allows rotting to begin faster than usual. Use for 4" wood posts 3 1/2" x 3 1/2" actual Total Height: 1. 25".
BrandFence Supply Online #ad
ManufacturerFSO #ad

4. GreenLighting


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

GreenLighting #ad - Simple install - stop messing around with those complicated installations. 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. 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. 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. Not suitable for PVC or Vinyl posts.

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. 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.
BrandGreenLighting #ad
ManufacturerGreenLighting #ad
Height9.75 Inches
Length4.75 Inches
Weight2.38 Pounds
Width4.75 Inches

5. JSP Manufacturing


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

JSP Manufacturing #ad - 4x4 3-5/8" plastic black fence Post Caps - 16 Pack. 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.

Please take time to measure your post not all 4x4 post are the same dimension. Inside dimension 3-5/8" x 3-5/8" square, 1/8-inch-thick to protect your treated posts from water and sun damage. Fence post plastic black caps for Nominal 4X4 fence post that measure 3-5/8"x 3-5/8". Can be painted, but will Not Stretch. Cap presses over the outside of a 4x4 post, a little flex, should be pre-drilled if securing with nails. Can be secured with nails or glue, must use a paint that adheres to plastic.
BrandJSP Manufacturing #ad
ManufacturerJSP Manufacturing #ad
Weight1.23 Pounds
Part NumberFBA_FC-4x4-BLACK-16

6. JSP Manufacturing


JSP Manufacturing Fence Post Plastic Black Pyramid Post Cap for A True 4 Inch x 4 Inch 100mm Post Black 2

JSP Manufacturing #ad - Will not fit over 3-5/8" x 3-5/8" post ~ Inside Dimension 4" x 4" Square ~. 08 inch-thick to protect your treated posts from water and sun damage.

Add a simple, a little flex, railing or mailbox post ~ Made in USA! Fits over the outside of a true 4x4 post, clean look to your fence, but will not stretch. Can be painted, must use a paint that adheres to plastic. Can be secured with nails or silicone, should be pre-drilled if securing with nails. Multi-pack quantity item - Please verify correct quantity needed, Pricing automatically calculates. New plastic black pyramid fence Post Caps True 4x4 100mm" x 100mm".
BrandJSP Manufacturing #ad
ManufacturerJSP Manufacturing #ad
Part NumberFC-100mm-BLACK

7. HLC


4x4 Post Point Cap, Solid Copper 3-1/2" x 3-1/2"

HLC #ad - Fits 3-1/2" x 3-1/2" wood post standard 4 x 4. Made of brushed Solid Copper. Actual base opening is 3-5/8" with a 3/8" lip and overall height of 1-1/2". Applies easily with a little adhesive on the inside 3/8" lip of the post point.
BrandHLC #ad
ManufacturerHLC #ad
Part NumberPPP1



Solar Post Cap Lights Outdoor- 4 Pack LED Fence Post Lights for Wooden Posts Warm White Waterproof for Deck, Patio or Garden Decoration Black

SUNWIND #ad - One warm white 5 lumens led and 1x 1. 2v aa ni-mh 400mah battery are included in each lamp. Perfect for anywhere that with wooden piles or fence. Dimensions: 5. 63” l x 5. 63" w x 4” H. Base dimensions: 3. 58" l x 3. 58" w. And once they're in use, they can automatically light up at night and turn off at dawn.

Weather resistant & waterproof--the led fence lights are made of durable plastic for long lasting durability, never need to worry about putting them under the rain or snow. Your satisfaction is our goal- for any reasons, you are not satisfied with our Solar Lights, just contact us directly and we will do everything we can to provide you with a satisfied solution. They give off amber light, which shines from the combination of the LED light and an internal reflector.

Not any Other Sizes. Easy diy install: included 2x wall plugs and stainless steel screws go horizontal through the base of the fixture and into the post. Application: these solar cap post lights will only fit base within dimension 3. 58" x 3. 58" posts. The outdoor post deck lights charged by sunlight for 8 to 10 hours can provide 6 to 8 hours illumination, no need any operation anymore, realizing energy saving.
BrandSUNWIND #ad
ManufacturerSUNWIND #ad
Height4 Inches
Length5.63 Inches
Weight2.25 Pounds
Width5.63 Inches

9. Home Zone


Decorative Glass LED Outdoor 4x4 3.5 x 3.5 in. Post Lights, Black, Home Zone Security Solar Post Cap Lights

Home Zone #ad - Decorative housing: designed with decorative rigged glass high quality housing for beautiful accent lighting effect along your deck and porch posts. Auto-on sensor: dusk to dawn sensor to keep light off during the day while charging and automatically triggers at night for hours of illumination.

Buy with confidence: tested and approved for outdoor weather resistance backed with our 1-year no hassle product support. Solar powered: let the sun do the work with solar outdoor post cap lights from Home Zone Security featuring long lasting warm LED lights to upgrade your home with elegant accent lighting. Simply switch the light on and mount using the included mounting screws to install on your posts for attractive accent lighting at night Intended for 4 x 4 posts. Easy setup: quick and painless installation with no wiring required.
BrandHome Zone #ad
ManufacturerHome Zone Security #ad

10. GreenLighting


GreenLighting 12 Pack Modern Design Solar Powered 5 Lumen Post Cap Light for 4x4 or 5x5 Posts Black

GreenLighting #ad - Post will fit 4 x 4 nominal wood post, 4 x 4 Vinyl or PVC, 5 x 5 Vinyl or PVC with included adapters. Led lighting - each light features 2 bright white LEDs to provide a better quality of light distribution, last up to six times longer than other type of lights, and are much more efficient than traditional fluorescent or incandescent lights.

For multiple post sizes - each light measures 5. 2" x 5. 2" x 3. 9"; interior measurement of 3. 6" x 3. 6". With greater exposure to the direct sunlight, the solar light will provide longer run times at night. 100% solar powered - solar deck lighting provides long-lasting, ambient lighting without the hassle of external wiring.

Easy to install - easy to mount to your highest point on the railing, this solar post cap light does not require any wiring and is entirely maintenance-free. Modern outdoor lighting - these bungalow style post cap lights add radiance and distinction to gardens, yards, or decks, creating a well-lit path to your outdoor environment.
BrandGreenLighting #ad
ManufacturerGreenLighting #ad
Height16 Inches
Length12.5 Inches
Weight12.75 Pounds
Width12.5 Inches