Uplift Anchors to Meet Wind Uplift Requirements

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.

There are three uplift anchor sizes available for Perma-Columns and one for wood columns. Uplift anchors rely on the weight of the soil cone for uplift protection. Bolts used in the hardware packages are A325 (Grade 5).

1. Standard – 2”x 2” x 8.5” x 0.134” galvanized steel

2. Medium – 2” x 2” x 12” x 0.134” galvanized steel

3. Heavy – 3” x 3” x 12” x .250” black angle iron

4. Standard Wood Column - 2”x 2” x 8.5” x 0.134” galvanized steel

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