What is the proper way to set posts for a long-lasting fence?
Construction Heart redwood is
often used for fence posts. The most common dimension is 4x4.
Post depth should be
1/3 the above-ground height plus an
additional 6 inches for the rock or
gravel bed (Fig. 5). If you experience
frost where you live, dig postholes
down to a foot below the normal
frost line to minimize damage
from ground shift due to alternate
freezing and thawing of soil.
Post Anchor Alternative.
As an alternative to placing
a posts in the ground, concrete footings and metal post anchors
may be used, as shown in the example on the left.
See Redwood Fences
for All Reason