Using a Larger Post with 4x4 Anchor by: Editor - Rich Bergman
Those are larger sized posts and would be too small to use with the 6x6 anchor which has a profile of 7.5"x7.5". On the other hand the 4x4 Titan post anchor measures 5"x5" so it is almost too big for that one also. But not quite.
It will work but you will not be able to use the side holes to screw into the deck. They will be partially covered by the post. However, the corner holes will be more exposed.
The centers of the holes are 2-1/8" apart and 5/16" diameter. So the centers of the corner holes are 4-1/4" apart. By the looks of things the corner of your post will over lap the hole a tiny bit. I think you can still gain access to the corner holes and drive a screw (#14x3" pan head) through. You will have to go in on a slight angle and the head will glance the lower corner of the post marking it somewhat but it should still go in fine.
Alternatively you could drill out the corner holes with a slight larger bit to gain a bit more access. In this case you probably would not touch the corner of the post.
Those are the options if you are using a larger post. I think the finished look using the 4x4 anchor is much better than the larger 6x6.
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