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Azek Federal  Slip Over Post Cap (5.5" to 6.5")

Azek Federal Slip Over Post Cap (5.5" to 6.5")

Azek Federal  Slip Over Post Cap (5.5" to 6.5")
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Azek Federal Post Cap slips over the tops of your posts for easy DIY installation. Available in 5-1/2", 5-3/4", 6" to 6-1/2" sizes. Made of polymer PVC that resists scratches, stains, mildew and moisture damage. Texture of bare material can look rough. With just one coat of paint, texture will return to a smooth, shiny finish.
  • Post Cap only - NOT a light
  • Available in a variety of post sizes: 5-1/2", 5-3/4", 6" to 6-1/2" square (see sizes below)
  • Impervious to Insects and Moisture
  • Will not rot, split, twist or warp
  • Must be painted
  • Quality craftsmanship
  • Made in the USA
  • Manufacturer: Nantucket Post Cap
  • Outstanding 25 year warranty on Material Defects


For a nail-free look, simply apply an exterior marine adhesive like 3M 5200 to the top of the post and slip the post cap over. Stainless steel nails may be used as an alternative, but not necessary.

Product Care

Azek products must be painted prior to being installed or they will discolor and void the warranty.

The following is recommended:

  • Azek doesn't have a finish and that leaves the material subject to dirt, smudges, mold, and mildew.

  • Properly prepared and painted with even brush strokes gives it the appearance of finely painted wood.

  • A properly painted finish will last for years, protecting the substrate from mold, mildew and UV rays.

  • Surfaces must be clean, dry and void of any foreign material such as dirt, oil, grease or other contaminants that may come from normal handling, storage and/or installation prior to painting.

  • Use a 100% acrylic latex paint with colors having a Light Reflective Value (LRV) of 55 or higher.


Measure the length and width of your post for best fit. Order by actual post size. Base opening of post cap will be 1/8" larger to easily slip over your post and to allow the wood to naturally expand and contract. 


5-1/2" Post: $37.00
5-3/4" Post: $45.00
Full 6" Post: $54.00
6-1/2" Post: $67.00