How far apart should I space my Trex posts?

When figuring out how far apart you should space your Trex posts you need to take into account whether you are doing a Seclusions Fence or a Horizons Fence. Trex Seclusions Fence panels are designed to be 96' wide on the center of the post. Because of this, it is important that when installing, Trex Seclusions posts are 91" apart from inside post to inside post. Trex Horizons Fence panels are designed to be 97" wide on the center of the post. Because of this, it is important that when installing Trex Horizons, posts are to be 92" apart from inside post to inside post.

Many customers cut their sections back in order to fit spaces that just would not work for a full 8 foot section. 

Situations in which you would be shortening the span of the fence would require you to cut top and bottom rails to length, and then you would remove the needed amount of pickets from the section. Importantly, you would not want to cut, or "rip", the pickets in order to fit the shortened span. That would ruin the interlocking function and would cause problems in securing your fence section. Instead, you will need to adjust the spacing of the pickets accordingly. While this will affect how tight a few of the pickets are interlocked together, you can place finish nails through the knuckles of the pickets in order to secure them. 

Pages 12 and 13 of our Installation Guide shows you how to do this. Our Installation Resources include videos that give you a visual of how a fence section goes up which may also be very helpful.

Our install guides for both our Seclusions and Horizons fence systems offer step-by-step instructions to ensure that your posts get installed correctly.