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)
It looks great and well made. I have to wait until spring to really use it. I did put it on the outside post loved the look it gives the post. I have lights on the other post but one didn’t fit on the one closest to the house this crab makes a finished look. Would recommend it
Very well crafted and the powder coating makes my eagle mailbox post decorative addition look amazing. I'm proud to have it enhancing the overall appearance of my mailbox. Thank you Madison Iron & Wood!
Absolutely love these post caps. The quality and workmanship is outstanding. The instructions provided were extremely helpful as we installed these on older posts and after following the instructions they fit perfectly. Would definitely purchase from these folks again. Definitely recommend to others. A 5 star experience from start to finish.
My husband and I are very pleased with the Squirrel post caps. They really enhance our back deck; they look really classy. And, the workmanship is excellent!
Rebecca W.
I ordered some hummingbird post caps and plain post caps in the same color - navy blue. The hummingbird caps will look great in my pollinator garden - and the plain ones will be used to cap off the posts for my sailcloth canopy.
I know that these are unique products - both high quality and in a variety of designs to complement different landscapes while actually protecting the tops of my 4x4 posts. I also appreciate the fact that coordinating screws are provided.
This our new garden area; we are calling it "the Final Frontier" because it is the last available space on our 1 acre. It has always been a field of a terrible invasive weed that has been hard to keep under control, let alone get rid of. But we did finally get it out. I designed the hard-scape and chose and planted the plants. We wanted all the things this type of setting should have: firepit, tree of life metal sculpture, fountain and windchimes. Your post cap is perfect at the top of the windchime post featuring a hummingbird, as the flowers will attract many.
It showed up nicely packaged, and I could tell alot went into it. Thank you! Being a veteran my self i am always proud to support veteran owned companies.
It’s perfect! Great quality! We haven’t placed it yet because we are waiting for our tile backsplash to be completed before hanging it but we’re sure it will look great!
I ordered a rail panel to use as wall art. I ordered mine unfinished and will allow it to naturally rust to a beautiful patina. It is very well made with precise cuts and no sharp edges. It arrived quickly and well packaged. Very happy with my purchase!
This simple, beautiful bird turned our normal looking mailbox into something special that people take notice of. We look forward to buying more from you and recommending you to others. Thank you.
Madison Iron & Wood did a fantastic job on our metal sign. We are so pleased with the result and absolutely love the craftsmanship & care! We highly recommend this company and thank them for their service.
~ Missy Pfister