1.5
POST-IN-GROUND SYSTEM
1.5.1
What is a Post-in-Ground anchoring system?
As the term indicates, Post-in Ground, means that the vertical posts for a pergola are inserted deep into concrete footings and
anchored in that way. The depth of the footing and the length of the post required to be embedded into the footing is
determined by the maximum depth of the frost line for a particular area. The diameter of the footing is determined by the
weight each post applies to the footing. For a 6x6 pergola that uses 8 ft posts and 8 ft headers weigh approximately 900 lbs. If
you add headers, a swing or hammock, you must consider the additional weight. Consult your local building codes to determine
the required footing depth and diameter. If you fail to follow local guidelines and create a footing that is too shallow, it can lead
to the post and footing heaving upward when the ground freezes during the winter. This can permanently damage the Pergola
and render it unsafe for use.
