(2 x 2 x 8.5 shown)
(12 inch shown)
In most instances, Perma-Columns will need to meet wind uplift requirements – the ability of your structure to remain attached to the soil profile. There are two ways to achieve this – both methods using the pre-cast hole in the bottom of the Perma-Column.
1. A concrete collar attached by means of either a piece of rebar through the Perma-Column or a bolted on column extender.
2. Uplift anchors bolted to the column with packed fill around posts.
Allowable Unfactored Uplift*
|18" dia||24" dia||2 x 2 x 8.5||2 x 2 x 12||3 x 3 x 12|
* Units are in pounds
See section 9 of Design and Use Guide for more details.