Frank J Warner wrote:
Storm blew down a portion of a 30-year-old good-neighbor fence. 6 foot
high, 4x4 redwood posts set in concrete, 2x4 rails, 1x6 dog-ear cedar
panels. Surprised it lasted this long.

We're rebuilding the entire fence and have a couple of questions.

First, should we re-use the old post holes? We'd dig out the existing
concrete and pour new, but the soil is sandy and not too stable to
begin with. Digging the old concrete out will undoubtedly leave holes
too big to fill economically unless we use cylindrical concrete forms.
OTOH, moving the post holes over a few feet to undisturbed soil will
create unsightly "short" panels at either end of the fence.

Second, does anybody recommend setting PT 4x4 posts in galvanized metal
post brackets embedded into the concrete rather than directly into the
concrete? I see those beefy brackets at HD and wonder if they would
actually hold up in a windy environment like mine. The age of the old
fence tells me that setting the posts directly into the concrete works
just as well if not better.

-Frank

The houses I have lived in have clay soil which holds water very
well. I usually backfilled the holes in which I stuck treated
posts with gravel using the crushed marble sold in garden stores.
I think this helps drain the water from the posts and thus
prolongs their life, but of course I have never done any
comparison tests. This also has the advantage that it does not
require waiting for concrete to set and does not require tamping
the fill soil to hold the post firmly.