Top 9 Fence Post Caps 4×4 – Decking Caps

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1. JSP Manufacturing


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

JSP Manufacturing #ad - These caps for nominal 4x4 fence post that measure 3-5/8"x 3-5/8". Inside dimension 3-5/8" x 3-5/8" square, 1/8-inch-thick to protect your treated posts from water and sun damage.

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. 4x4 3-5/8" x 3-5/8" plastic black fence Post Caps - 16 Pack. Must be secured with nails or an adhesive that bonds to plastic and wood, a little flex, should be pre-drilled if securing with nails. Cap presses over the outside of a 4x4 3-5/8" x 3-5/8" post, but will Not Stretch.
BrandJSP Manufacturing #ad
ManufacturerJSP Manufacturing #ad
Weight1.23 Pounds
Part NumberFBA_FC-4x4-BLACK-16

2. JSP Manufacturing


Plastic New Fence Post Black Caps 4X4 3 5/8" Pressure Treated Wood Made in USA MULITPACK Wholesale Bulk Pricing 32

JSP Manufacturing #ad - 4x4 3-5/8" x 3-5/8" plastic black fence Post Caps ~ Quantity: 32 fence caps. 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.

Cap presses over the outside of a 4x4 Post, a little flex but will not stretch. 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. Please take time to measure your post not all 4x4 post are the same dimension. Can be painted, must use a paint that adheres to plastic. Installation: must be secured with nails or an adhesive that bonds to plastic and wood, should be pre-drilled if securing with nails.
BrandJSP Manufacturing #ad
ManufacturerJSP Manufacturing #ad
Part NumberFC-4x4-BLACK-32-FBA

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 - The hole is 1/8” or 0125” so a 6d or 11 gauge nail 2 inches long should be fine. Protect your investment! current pressure treating often does not reach the center of the post.

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. Take time to measure your post not all 4x4 post are the same dimension. Made in usa easily nails or screws on. Use for 4" wood posts 3 1/2" x 3 1/2" actual Total Height: 1. 25". An exposed wood top allows rotting to begin faster than usual. Do not use glue like others recommend for their caps. It will flex, and break, crack, .
BrandFence Supply Online #ad
ManufacturerFSO #ad

4. Myard


Black, Myard PNP 115445 Screw-Free Universal Fence Pyramid Top Cap fits Post 4 x 4 Inches Actual Post Size 3.5 x 3.5 Qty 1

Myard #ad - Matte/fog surface on top; Matte/fog surface on bottom base. Screw-free nail-free installation. Pack of 1. Patented. One-piece structure, solid and durable. Important: fits standard posts of 4x 4 actual 3. 5"x 3. 5" inches. Thanks. See images, or ask us if any questions before ordering. Sanding / trimming may be required depending on post type and little size error. See images. Made from high impact, uv stable anti-UV ABS resin. Same as golf Course Sprinkler head. 5 holes at bottom base for gluing on 4"x 4" post.
BrandMyard #ad
ManufacturerMYARD #ad
Height3 Inches
Length5.6 Inches
Weight0.15 Pounds
Width5.6 Inches
Part NumberPNP 115445
ModelPNP 115445

5. Siedinlar


Siedinlar Solar Post Lights Outdoor Fence Deck Cap Light Solar Powered Metal Warm White LED Lighting Waterproof for Garden Patio Decoration 4x4 5x5 Wooden Posts Black 2 Pack

Siedinlar #ad - So unlike plastics or resins, they won't be deformed. The battery holder is sealed with waterproof glue. They are made of anti-corrosion metals. They have beautiful metal lamp shades and unique decorative patterns.

You can install them on wooden piles or fences. Noteif there is any problem with the solar post lights, please feel free to contact us. 1 year warranty and 24 Hours customer. The 3000k warm white light can make a very romantic atmosphere. You can rest assure to use, in any outdoor environments. And any outdoor location you like. Ip65 waterproofsolar post cap lights can work for over 30000 hours in very bright light.

Solar deck post lights are charged in the daytime for 6-8 hours under the sun, and will turn on for 8-10 hours in the nighttime automatically. Our post cap lights will fit post between 3. 5 to 5. 1 inches. Fix them with the screws inside. Unique design siedinlar solar post light are of high transmittance. Easy to usefirst time using, make sure to turn on the switch and install them according to the instructions.
BrandSiedinlar #ad
ManufacturerSiedinlar #ad
Height3.54 Inches
Length6.22 Inches
Width6.22 Inches



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 - And once they're in use, no need any operation anymore, they can automatically light up at night and turn off at dawn. Perfect for anywhere that with wooden piles or fence. The outdoor post deck lights charged by sunlight for 8 to 10 hours can provide 6 to 8 hours illumination, realizing energy saving.

They give off amber light, which shines from the combination of the LED light and an internal reflector. Application: these solar cap post lights will only fit base within dimension 3. 58" x 3. 58" posts. Not any Other Sizes. One warm white 5 lumens led and 1x 1.

2v aa ni-mh 400mah battery are included in each lamp. Dimensions: 5. 63” l x 5. 63" w x 4” H. Base dimensions: 3. 58" l x 3. 58" w. Energy saving & convenient--no need any electricity. 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.
BrandSUNWIND #ad
ManufacturerSUNWIND #ad
Height4 Inches
Length5.63 Inches
Weight2.25 Pounds
Width5.63 Inches
Part NumberPD-29530

7. Outdoor Essentials


4 in. x 4 in., Outdoor Essentials White Vinyl Pyramid Fence Post Cap

Outdoor Essentials #ad - Vinyl material is super-cleanable. Outdoor essentials vinyl fencing products are guaranteed to last. That’s it! size & fit – pyramid post cap fits over any Outdoor Essentials 4x4 white vinyl fence post model number 195168.

Use it to cover tops of 4-inch hollow vinyl fence posts. No-sweat, and it resists yellowing, blistering, non-porous vinyl, no-paint maintenance – you will never need to paint this tough, and splitting. Install in minutes – use vinyl cement and slide over fence post model number 125945. Vinyl post cap has lifetime limited warranty – buy with confidence. Traditional and practical vinyl fence accent – a low-profile finishing touch for white vinyl fence panels and gates.
BrandOutdoor Essentials #ad

8. Davinci Lighting


Outdoor Lighting for 4x4 5x5 and 6x6 Wooden Posts, Davinci Flexfit Solar Post Cap Lights, Slate Black 2 Pack, Bright Warm White LEDs

Davinci Lighting #ad - Flexible - let your posts light up your outdoor spaces. 6-8 hours of battery life each night. Completely self-contained. Solar powered - save energy, save money, save the planet.

Leds last 100, 000 hours. Beauty by design - make your home shine. Fits 4 x 4 5 x 5 and 6 x 6 inch wooden posts. Simply screw onto the top of your post. Easy diy installation - avoid the cost and headache of hiring an electrician or handyman. An appealing classic design with bright 25 lumen warm white LEDs. Quality - industrial grade plastic with UV fade protection. Charges during the day and turns on automatically at night. Ip44 weatherproof construction. No need to run electrical wiring.
BrandDavinci Lighting #ad
ManufacturerDavinci Lighting #ad
Height3.74 Inches
Length6.3 Inches
Weight0 Pounds
Width6.3 Inches
Part NumberDL104

9. Plum Fittings


Made in USA, Decking Caps for Pressure Treated Wood Fence, 32 Pack 4x4 Wood Fence Post Caps 3 5/8" Black

Plum Fittings #ad - Pack sizes comes in either 32 or 54. Installation nails are NOT included with these caps. This easy to install post cap sleeves over the top of the post, fits externally and requires only one screw for installation.

The 3 5/8" fits standard 4x4" posts, and has a nail-in-place installation style that enhances the stability and lengthens the lifespan of this high-quality, fence post cap. It features a black polypropylene construction that is both weather and UV resistant, in high winds, rain, for long-lasting color and performance. All of our post caps are made to fit posts of their respective size. For example, a 4" post cap will fit a 4" post outside diameter, a 3-5/8" post cap will fit a 3-5/8" post outside diameter, and so forth. Designed and manufactured the USA by the leading manufacturer in the post cap industry with high quality materials. Great, snow and sun.
BrandPlum Fittings #ad
ManufacturerPlum Fittings #ad