Finished in a variety of colors in a high-quality powder coat paint with UV inhibitors to prevent fading.
Post caps have pre-drilled holes on 2 sides and come with matching screws.
We highly recommend customers in coastal areas to order the zinc plate for their post caps.
American made and veteran owned family ran small business in Madison, Indiana.
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Full Description
Heavy-Duty Flat Top Steel Post Caps – Protection for Every Post Size
Protect your fence and deck posts with the ultimate in American-made durability. Unlike thin plastic or flimsy aluminum caps that crack over time, our Flat Top Steel Post Caps are hand-welded from thick, structural steel to provide a lifetime of protection and a clean, modern aesthetic for your outdoor space.
Custom Fit for Every Project We understand that not all "4x4s" are created equal. That is why we offer a full range of sizes to ensure a precision fit for both standard and rough-cut lumber:
Nominal Sizes (Standard Lumber): Fits standard posts found at most lumberyards.
Nominal 4x4 (Actual 3.5" x 3.5")
Nominal 4x6 (Actual 3.5" x 5.5")
Nominal 6x6 (Actual 5.5" x 5.5")
True Sizes (Rough-Cut/Hardwood): For the builder using full-dimension timber.
True 4x4 (Actual 4" x 4")
True 5x5 (Actual 5" x 5")
True 6x6 (Actual 6" x 6")
Custom sizes are available upon request—if you don't see your size, just ask!
Why Choose Madison Iron and Wood?
Veteran-Owned Quality: Every cap is hand-welded and inspected in our Madison, Indiana shop.
Superior Finish: Finished in a high-quality, baked-on powder coat with UV inhibitors to prevent the "chalking" or fading common with cheap paints.
Easy Installation: Each cap comes pre-drilled on two sides with matching powder-coated screws included for a seamless look.
Optional Zinc Primer: For maximum rust protection, we offer an optional zinc-rich primer—a "sacrificial shield" that prevents corrosion even if the finish is scratched.
Technical Specifications:
Material: Heavy-Duty American Steel.
Color Options: Available in Antique Copper, Semi-Gloss Black, White, and 11+ other premium finishes.
Origin: Made in the USA.
Note: Please measure your post dimensions before ordering to ensure the perfect fit for your specific lumber.
Flat Top Steel Post Cap (Multiple Post Sizes Available)
Color:Gloss Black, Post Sizes:Nominal 4x4 (3.5"x3.5"), Zinc Primer (Optional - Added Rust Prevention):No thanks
Flat Top Steel Post Cap (Multiple Post Sizes Available)
I bought two heron 5 1/2 x 5 1/2 post caps and two regular caps for my dock. All are beautifully crafted. I did have to sand the corns of all four posts. I will definitely buy from this group again.
Very high quality! The only problem was that these caps were too small for my nominal 6x6 posts, by about an eighth of an inch all around. Haven’t quite figured out how I’m going to take that much wood off the posts to make these caps fit, but I will find a way, I love these caps!
Loved the caps! It was very hard to get them to fit on the 5.5x5.5 posts. Took a lot of
routering and rasping for my husband to get to fit. Would have been easier if slightly bigger. Our posts were exactly5.5 x5.5.
They are exactly what I wanted.
The whole experience was top shelf. Easy website navigation, great communication, the packaging was above and beyond and the quality of the product was excellent. You earned a repeat customer! Thank You for everything!
We just transformed our properties appearance and value thanks to Madison Iron and Wood Triad post caps! We searched everywhere to find a post cap that matched our entrance gate. Finally found the perfect match at Madison Iron and Wood.
Shout out to Ethan and Chuck for the fantastic customer service helping us throughout the ordering and shipping process! It’s heartening to experience real customer service from people who really care.
Robert & Gail