Top 10 Best 4x4 post covers in 2026

Main highlights

• •【For What Size?】Actual internal size of our fence caps is 3.6”×3.6”, which is suitable for 3.5*3.5 inches to 3.6*3.6 inches wood fence post. Application for protecting the top of wood post like deck railing, wooden fence, woody handrail, porch railing and so on. NOTE that measure your posts before use and sanding is required for the wood to fit the post cover if your wood is slightly larger.
• •【4 Internal Strengthened Bars】Our 4x4 fence post caps is designed with 4 thickened plastic bars for enhanced firmness purposes. This upgraded design provides the fence cap with better structural stability, better load-bearing capacity and longer service life.
• •【Protect & Dress Up Your Posts】The classic black look with a frosted touch and symmetrical sloping ground design on all four sides not only better decorates your bare railing and fence topper, but also allows rainwater to slide off more efficiently without piling up at the top. Got your yard really impressive finished look and professional. Putting these deck caps can protect your post tops from animal gnawing and claws scratches, rain and sunlight erosion, keeping them in better shape.
• •【Water-Proof & Sunburn protection】The whole body of our decking caps is made of PP plastic. Featuring lightweight but hard, rust prevention, waterproof and heat-resistant characteristics. Sunburn resistant raw materials are also added to better reflect the sunlight and prevent the color from fading in a short period of time.The surface is frosted with a black coating for year-round use.
• •【Easy & Quick Assembly】Just 2 easy steps for a quick installation. Simply place the deck end caps on the wooden post topper and screw in. In order to save your energy, we provide complete screw accessories, but also provide 1-6 spare screws in case of emergency! Please be careful when screwing in the screws.