Quaise Azek Finials by Nantucket Post Cap

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The final product price may change based on the combination of size / type / finish / style you choose.

Finials add a wonderful and rich looking style to your fence post or deck post.  Nantuck Post Cap finials offer 5 different variations to suit your taste.  Available for nonmial post sizes of 4" x 4", 5" x 5", and 6" x 6", and constructed from Azek composite material.

Azek composite finials must be painted in order to ensure proper performance over the years.  Azek finials accept paint easily and hold paint much longer than traditional wood finials.  Azek material is a perfect mix of beauty and functionality.  It looks, feels, cuts, and shapes like wood, only it does not rot or deteriorate.

Finials are often used to accent many different components from fences and stair railings to flag poles and porches. Nantucket Post Cap Azek finials are great for indoor and outdoor use. All NPC finials are shipped with lag screws for easy installation.

Quaise Azek Composite Finial:

  • Impervious to insects and moisture
  • Will not rot, split, twist or warp
  • Looks and feels like white painted wood
  • Accepts paint easily for a custom color
  • Perfect top for an Azek Flat Post Cap

Flat Azek post caps are recommended for a finished look (sold separately).

Due to the manufacturing process, when Azek is cut, the heat generated by the blade leaves a yellowish hue on the surface.  We strongly recommend painting the product white or any other color of choice (this is also needed for warranty).  The texture of the Azek Finial is also slightly different compared to standard Azek boards.  This happens because Azek is cut at an angle which exposes the naturally rougher interior of the product.
Azek finials are special order items.  Please see the shipping information tab below for further details.

Azek Finial Sizing:

Nantucket Post Cap LogoFinials are constructed to fit on standard (nominal) 4x4, 5x5, and 6x6 posts.  Please use the chart below to determine the best size finial for your fence post or deck post:


Quaise Azek Finial

Nominal Post Size Total Height Base Diameter Widest Point
4" x 4" 5" 3-1/2" 3-1/2"
5" x 5" 6-1/2" 4-1/2" 4-1/2"
6" x 6" 8" 5-1/2" 5-1/2"

All Nantucket Post Cap products are made in the U.S.A.


Most orders ship within 5-15 business days.

Please see our return policy for addtional details.