Piling Caps

Piling caps are designed as a way to protect expensive pilings from deterioration and rot.  They are an excellent and economical choice for dock and pier pilings.  They can also be used in other outdoor applications.  Some examples would be agricultural, residential and commercial fencing, composite utility poles, concrete columns, restaurants and other businesses for creating themed outdoor areas and spaces.

The Cone Shaped piling caps are designed to discourage sea birds from landing on them and make it easier to throw lines over the pilings.  The most popular sizes (7″ to 13″) of cone shaped caps are injection molded, UV inhibited polypropylene.


The Flat Shaped piling caps are designed to cover the tops of the pilings leaving a smooth surface.  If the pilings are cut level, they can be utilized to place things (boating supplies, fishing gear, accessories, etc.) instead of putting them down on the dock creating a trip hazard.

All flat caps and the larger sizes of cone caps are thermoformed using a superior grade of heavy duty low density polyethylene (LDPE) with an estimated life in excess of 15 years for black caps and 9 years for white caps.   Thermoformed black caps are specified for applications requiring an extended service life in extreme conditions such as caps for composite utility poles.  (The actual life of piling caps is not guaranteed).

Piling Caps are available in the Cone and Flat styles, Round or Square shapes and White or Black in color.

  • The Round Cone and Round Flat piling caps come in 1/2" increments from 5 1/2" to 18" inches in diameter.  Larger Round Cones are also available in several sizes up to 30".  Call for the sizes available.
  • The Square Cone and Square Flat piling caps come in sizes from 3.5" x 3.5" to 18" x 18", but not in 1/2" increments.  Call for the sizes available.

Measurement Guidelines For Determining The Correct Piling Cap Size:

Piling caps for wood pilings or posts.  (Pilings are trees and therefore are not uniform in size).  Measure across the top of each piling, at several different points, to find the widest measurement.  Please provide that measurement in 1/8" to determine the correct size piling cap.  The piling cap can then retain its round or square shape without any distortion.

Measurement Guidelines for Determining The Correct Piling Cap Size for our Mac-Cap® Lighted Piling Cap Kits (Item MCLK and Item MCVRLK):

When measuring pilings or posts for installation of our Mac-Cap® Lighting Kits, use the same method as described above to find the widest measurement, (to the 1/8").  This widest measurement  along with the wiring method that will be used to install the light kit determines the correct size piling cap needed. The piling cap can then retain its round or square shape without any distortion.

Call us and we will walk you through the steps and answer all of your questions.