Post Caps
Complete your fence with high quality post caps that protect your posts and give a clean, finished look. Available for both round and square profiles in polyamide, aluminum, or steel. In stock and ready to ship across the USA. Read more
20 products

Fence post cap | 2-3/8" x 2-3/8" | Aluminum
from $5.95

Cap with pass-through | Ø 2-3/8" x Ø 1-5/8"
from $6.95

Barbed Wire Arm | 2-3/8" x 2-3/8" | 3 wire | 45° angle
from $21.00

Barbed Wire Arm | Ø 2-3/8" | 2 wire | Straight
from $19.00

Post Caps
Looking for a strong, versatile fencing solution? FenceWeb's Post Caps offers the perfect balance of security and style.

Barbed Wire Arm | Ø 2-3/8" | 3 wire | 45° angle
from $21.00

Barbed Wire Arm | Ø 2-3/8" | 3 wire | Straight
from $20.00

Fence post cap | Ø 1-5/8" | End & Brace
from $4.95

Top rail fence | T-connector | Ø 2-3/8" x Ø 1-5/8"
$8.49

Top rail fence | T-connector | Ø 2-3/8" x Ø 2-3/8"
from $10.95

Top rail fence | T-connector | Ø 3-1/2" x Ø 2-3/8"
from $18.95

Fence post cap | 3" x 3" | Steel
$2.49

Fence post cap | 2-3/8" x 1-9/16" | With hooks
$1.49

Fence post cap | 2-3/8" x 2-3/8" | Polyamide
$2.49

Fence post cap | Ø 1-5/8"
$1.49

Fence post cap | Ø 2-3/8"
$1.99

Fence post cap | Ø 2-3/8" | With hooks end
$2.00

Fence post cap | Ø 2-3/8" | With hooks corner
$2.00

Fence post cap | Ø 2-3/8" | With hooks front
$2.00

Fence post cap | Ø 2-3/8" | With hooks sides
$2.00

Fence post cap | Ø 3-1/2"
$2.49
Showing 1-20 of 20 products
Post Caps for Round and Square Fence Posts
A fence is only as strong as its weakest point, and often, that’s the top of the post. At Fenceweb, we offer a wide selection of durable fence post caps that protect your posts from water, rust, and impact damage, while giving your fence a professional finish. Fenceweb is the leading supplier of fence accessories in the United States.
Reliable Protection for Every Post Type
Whether you’re working with round posts or square profiles, we have caps to match. Our range includes sizes to fit 1 3/8", 1 5/8", 2", 2 3/8", 2 1/2", and 3" posts. The right cap keeps rain and dirt out, extending the life of your posts and minimizing maintenance.
Choose the Right Material
Each project has its own demands. That’s why Fenceweb offers post caps in three materials:
- Polyamide: Tough, UV-resistant, and impact-proof. Ideal for residential and light commercial fences.
- Aluminum: Lightweight, corrosion-free, and sleek in appearance. A popular choice for modern fencing.
- Steel: Maximum durability and vandal resistance. Perfect for industrial sites and high-security projects.
Easy to Install, Built to Last
Our post caps are designed for quick installation — no tools required in most cases. Simply press them into place for a snug fit. All caps are weatherproof and tested for outdoor use.
Why Add Post Caps?
- Prevents water damage, rust, and decay
- Protects post tops from impact and UV
- Improves fence appearance
- Reduces long-term maintenance
- Affordable upgrade for any fencing system
Fast Shipping, Always in Stock
All post caps are in stock and available for fast delivery throughout the United States. Ordering fencing materials through Fenceweb? Add your post caps to the shipment with no additional freight cost.
Need help finding the right size or material? Our team is ready to assist you with expert advice and tailored solutions.
Frequently asked questions
Why should I use fence post caps instead of leaving my posts uncovered?
Leaving your fence posts uncovered exposes them to rain, snow, and sun damage, which can lead to rust, rot, and general wear over time. Fence post caps act as a protective barrier, preventing moisture from entering the post and extending the lifespan of your fence. Additionally, they enhance the overall appearance of your fencing, giving it a more finished and professional look.
Are your fence post caps compatible with all types of fences?
Yes! Our fence post caps are designed to work with a variety of fencing styles, including chain link, welded wire fence and metal fencing. Whether you're installing a residential, commercial, or industrial fence, we have post caps that fit your needs.
Do fence post caps affect the overall stability of the fence?
While fence post caps don’t directly add structural strength, they help prevent long-term damage by protecting the top of the fence post from moisture and debris. By reducing the risk of post degradation, they contribute to the overall longevity and stability of your fence.
Do fence post caps fit all types of fence posts?
Our fence post caps come in a variety of sizes and shapes to fit both round and square fence posts. It’s important to measure your post’s diameter or width before purchasing to ensure a perfect fit. If you’re unsure which cap to choose, feel free to contact our customer support team for assistance.
Are your fence post caps easy to install?
Yes, our fence post caps simply slide onto the fence post.
What types of fencing products does Fenceweb offer?
Fenceweb offers a complete range of fencing products, including welded wire fence panels, chain link fence, ornamental and metal fencing, security fencing, fence posts, swing and farm gates, gate hardware and temporary fencing. We also carry trusted brands such as Locinox, Gatemaster, ZND, AES Global, D&D Technology and Tarter.
Still have questions? Call us at 214 878 1900
