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Uplift Anchor

(2 x 2 x 8.5 shown)

Column Extender

(12 inch shown)

Wind4Uplift Capacity

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*

Perma-Column

Concrete Collar

Uplift Anchor

18" dia 24" dia 2 x 2 x 8.5 2 x 2 x 12 3 x 3 x 12
PC6300 2272 3253 1908 2693 NA
PC6400 2257 3238 2004 2789 NA
PC6600 2262 3243 1972 2757 NA
PC8300 2255 3236 2005 2790 NA
PC8400 2236 3217 2102 2887 NA

* Units are in pounds

See section 9 of Design and Use Guide for more details.