4 in. x 4 in. Copper Pyramid Post Point

Hello Gp, Home Depot does carry a copper post cap through a different manufacturer. To locate it, type these keywords: "5 x 5 post cap copper", and you will find it.

These are decorative and what you are asking is not what these are for. They are awesome, hold up well and the copper color on mine has stayed even after four years in a four season climate.

They're designed to fit wider than the actual lumber post. Not by much but about 1/8"+ over-hang. They fit well if you can center them. My fence had a snug fit on the backside in a few places where I had to sit them flush in the back so a bit more overhang in the front. But matches my cedar fence with natural cedar stain pretty well

After 2-4 years, yes, they will look like a patina'd copper. Beyond that, like mine at 6 years, the steel color under the plating starts to show. Keep in mind these are not solid copper, just plating.

We have a dozen of these post caps and a lot of squirrels. We've never seen a squirrel perched for long on a post cap. When they jump off, the cap flies off the post. But that is a rare event.

I used exterior caulk and they stay on in storms etc. You can pull them off which is what I wanted for repainting the posts with a sprayer.

No. The peak of the cap only rises about 1-1/2 inches once it is seated on the post. You could trim the top of the post about an inch.

Yes, they sell 6 x 6 posts.

There shouldn't be an issue with putting vinegar or something else on the convert to make it look older, how are that will age over time within a few months and will not have the shiny look anyway.

Scooter, As with anything made of copper, its use in damp coastal/marine environments will develop patina layers faster than ones in dry inland areas. To extend the life of these beautiful copper caps, read the following information that was taken from the Instructions section of the boxed-off area of Info & Guides on the product page: Post Cap Care and Maintenance - Copper: In its natural state, copper breaks down in the elements and develops a patina. In general, copper progresses from a natural salmon color to a series of russet browns and grays, and finally to a blue-green or gray-green patina. To maintain the shiny look, apply a car wax immediately after purchasing the cap, and reapply every 3 to 6 months. To remove an already tarnished finish, remove the old coating with mineral spirits and grade 0000 steel wool. Buff with grade 0000 steel wool for a satin finish. For a mirror-like finish, apply a car wax or spray with a clear lacquer or polyurethane and let dry, and then apply a car wax."