Fencing Accessories
Dome Post Caps
Dome caps protect fence posts from water and give your fence a clean, finished look. We’ll help you choose the right cap for your post size, material, and finish.
What a dome cap does
Keeps water out
A cap sheds rain away from the post top to help reduce swelling and rot in wood and limit corrosion on metal posts.
Improves durability
By protecting the most exposed end grain or cut edge, dome caps help posts last longer—especially in Louisiana’s heat, humidity, and storms.
Finishes the look
Dome caps add a clean, consistent top line that looks intentional on residential, commercial, and ornamental fence runs.
Materials and finishes
Dome post caps are commonly available in steel, aluminum, and stainless steel, with finishes like black powder coat, galvanized, and brushed or polished metal. For wood fences, dome-style caps are also available in treated lumber, cedar, and composite. The best choice depends on your fence type, exposure to salt air (coastal areas), and the look you want to match.
When dome caps are used
Dome caps are a practical upgrade any time the post top is exposed. They’re commonly used on chain link terminal posts, ornamental iron/aluminum fences, privacy fence posts, and gate posts where extra protection matters. They’re also a good fit for properties that see frequent rain, irrigation overspray, or standing water—because keeping moisture out of the post top helps reduce long-term maintenance.