Top 9 Post Caps 4×4 – Decking Caps

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1. Fence Supply Online

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

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

2. 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 - 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.

Cap presses over the outside of a 4x4 3-5/8" x 3-5/8" post, a little flex, but will Not Stretch. 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. 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, should be pre-drilled if securing with nails.
BrandJSP Manufacturing #ad
ManufacturerJSP Manufacturing #ad
Weight1.23 Pounds
Part NumberFBA_FC-4x4-BLACK-16
ModelFBA_FC-4x4-BLACK-16

3. JSP Manufacturing

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

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JSP Manufacturing #ad - 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.

Installation: must be secured with nails or an adhesive that bonds to plastic and wood, should be pre-drilled if securing with nails. 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. 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. 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. 4x4 3-5/8" x 3-5/8" plastic black fence Post Caps ~ Quantity: 32 fence caps.
BrandJSP Manufacturing #ad
ManufacturerJSP Manufacturing #ad
Part NumberFC-4x4-BLACK-32-FBA

4. H.L.C.

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Solid Copper 3-1/2" x 3-1/2", 4x4 Post Point Cap, 10 Pack

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H.L.C. #ad - Pack of 10 brushed 100% Solid Copper Post Caps. Fits 3-1/2" x 3-1/2" wood post standard 4 x 4. 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.
BrandH.L.C. #ad
ManufacturerH.L.C. #ad
Part NumberPPP1

5. Myard

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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

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

6. 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”. Measures 4” x 4”. Pressure treated for durability. For use with posts measuring 3-1/2 inch x 3-1/2 inch.
BrandDeckorators #ad
ManufacturerDeckorators #ad
Height3 Inches
Length6 Inches
Weight0.5 Pounds
Width6 Inches
Part Number72213
Model72213
Warranty90 day limited warranty

7. GreenLighting

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GreenLighting 4x4 Aluminum Pyramid Post Cap Cover for Nominal Wood Posts Black, 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. Not suitable for PVC or Vinyl posts. Simple install - stop messing around with those complicated installations.

Specifications - measures 3. 63" x 3. 63"and is designed to fit a 4" x 4" nominal wood post. 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. 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.

This set includes eight post caps. 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. Dress up your yard - let's be honest, fences can be boring and not the best item in your yard to look at.
BrandGreenLighting #ad
ManufacturerGreenLighting #ad
Height9.75 Inches
Length4.75 Inches
Weight2.38 Pounds
Width4.75 Inches

8. GreenLighting

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Vinyl Posts Bronze, GreenLighting 12 Pack Siena Solar Post Cap Deck Light for 4x4 Nominal Wood or 4X4 & 5x5 PVC

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GreenLighting #ad - 100% solar powered - solar deck lighting provides long-lasting, eco-friendly ambient lighting without the hassle of external wiring. With greater exposure to the direct sunlight, the solar light will provide longer run times at night.

The brilliant white led bulbs in these post cap lights have a life expectancy of over 100, 000 hours! Made for a variety of posts - each light measures 5. 75" x 5. 75" x 4. 5", base dimensions: 3. 63" x 3. 63" fits on nominal 4" x 4" nominal wood posts, and also 4x4 & 5x5 PVC or Vinyl Posts. Energy efficient led - using 75% less power and lasting 25% longer than traditional incandescent lights, LEDs are the “in", eco-friendly choice when it comes to lighting your home.

Easy to install - everything you need to get started is included: 12 post cap lights with batteries, bases, screws and adapters. Weather resistant construction - Smooth & durable weather resistant surface is perfect for handling the natural elements.
BrandGreenLighting #ad
ManufacturerGreenLighting #ad
Height22 Inches
Length14 Inches
Weight13.5 Pounds
Width10 Inches

9. WeatherPRO Post Caps

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

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WeatherPRO Post Caps #ad - Multi-pack 4 four gloss black powder Coated Post Caps with screws made of sturdy cast aluminum. Why buy plastic when you can install 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. Protects 4x4 aluminum fence post caps won't deteriorate or warp like wood, plastic or resin will. Pyramid design also fits standard 4x4 mailbox, deck, lamp post, dock and piling posts. Fit fits 3. 5" x 3. 5" 4" nominal standard wood post.
BrandWeatherPRO Post Caps #ad
ManufacturerWeatherPRO Post Caps #ad
Part NumberFPC1