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Nantucket Metal Post Points

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Nantucket Metal Slip Over Post Cap

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Nantucket Metal Slip Over Post Caps provide an elegant finishing touch to any square deck post and are available in four metallic shades:

  • Copper
  • Black
  • Pewter
  • Stainless

These post caps come in sizes that will fit 3-1/2" to 11-1/2" posts, depending on color.

These are special-order, non-returnable caps, so please measure carefully.

Need help picking out the right size cap? Use our "Post Cap Size Guide"

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Free Ground Shipping Available

On any combination of select items over $99

Excluding Alaska and Hawaii. Conditions Apply

  • Minimum Order Tier: $99
  • Note: Free shipping only applies to combined product totals of the same Minimum Order Tier. Learn More

Ground Shipping Only

This product requires ground shipping.

Special Order Product

This item may not be returned or exchanged.

ARE YOU ORDERING THE CORRECT SIZE POST CAP? We list the opening size of the post cap. The size you select should measure equal to or slightly larger than your post in order to slide into place over the post. Example a 6x6 post may actually be a 5.5" x 5.5" post. Please contact us if you’re unsure which size you’ll need

These Post Caps are made to order and are non-returnable. Remember that Nantucket Post Caps are sized according to the actual physical measurement of your post. All post caps are made 1/8" larger than the post size you specify. For example, if your 4x4 standard post truly measures 3-1/2" x 3-1/2", select that size. Your cap will then come with an inside measurement of 3-5/8" x 3-5/8", which will allow you to slip the Post Cap over the post easily. Colors and sizes vary by selection.

Copper Slip Over Post Caps from Nantucket are constructed of real copper and will develop an attractive patina over time.

View the Nantucket Post Cap Product Care Guides for instructions on finishing these post caps.

Package Quantity One Nantucket Metal Slip Over Post Cap
Color Black, Copper, Pewter, Stainless
Manufacturer Nantucket Post Cap
Manufacturer Link

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  1. Copper post caps review by Earl on 10/5/2018
    Overall Product Rating

    Installed 10 copper caps on railing posts on my patio deck. Excellent product except for one thing. Tried sitting five on three days ago and when a sudden wind came up lost all five in the yard. Today, I prepunched then drilled small nail holes and used brass nails to solve the small problem...Caps arrived in perfect shape , think they are an excellent product...

  2. Rain spots review by James on 8/22/2016
    Overall Product Rating

    After a good cleaning of the black post caps and an application of a silicone car polish they look new again. I hope they stay that way. Seems like there was some residue on the caps.

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