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Column Extenders

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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.

Column extenders are used when deeper post embedment is required and/or greater uplift values are needed. The minimum concrete backfill should reach the point of column extender attachment. This method allows for a combination of foundation pad as well as uplift. Two lengths are available – 12” and 24”. Bolts used in the hardware packages are A325 (grade 5).

See section 9 of Design and Use Guide for more details

Please note: All documents can be found under any of the Item pages listed below.




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Item #

Used with

Weight (lbs)

List Price

PK12CE-6 6" Perma-Columns 7.7 $23.00
PK12CE-8 8" Perma-Columns 7.9 $23.58
PK24CE-6 6" Perma-Columns 13.1 $32.70
PK24CE-8 8" Perma-Columns 13.2 $33.28
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