Titan Post Anchor on Flagstone

by Stuart
(Ventura, CA)

I would like to install the titan post anchor of flagstone for my friends flagstone patio. The lattice covered 2x4 & 4x4 arrangement is held up by brick bases with 4x4's coming out of them and going up to the "shade roof".

We would like to use your Titan bases as we are replacing the posts in their entirety but aren't sure about the flagstone that we need to attach to. Could you get us going in the right direction??

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May 01, 2012
Differences betweene 4x4 and 6x6 titan post anchor
by: Editor-Rich Bergman

You can certainly use the post anchor for stand alone structures like you have described and pergolas and gazebos are good candidates also. However, the 4x4 anchor is not as strong as the 6x6 anchor and this will be more noticeable when you use it in a tall structure (6' and up) like this.

For this reason you have to build the shape of the structure so that once all the tops of the posts are tied together by the roof structure it gains strength from the shape of the structure itself.

The strength of your structure you not rest entirely on the post to anchor connection if you are using the 4x4 anchor on posts that tall. We have great engineering numbers on 36" and 42" guard rails but you are taking it to a new dimension with posts that tall.

The 6x6 post anchor is must stiffer at those heights. This is not to say you can not build a rigid structure with the 4x4 anchor. Just be sure to brace the post to the roof joists and to incorporate some directional changes in the post locations so that rigidity is also derived from the shape of the structure.

Of course, use concrete screws for securing to the flagstone. Pre drill with the appropriate drill bit size.

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