Perma-Columns are precast concrete columns that are an alternative to preservative-treated wood thus ensuring the structural integrity of your building’s foundation, a simple and efficient construction method that allows an affordable concrete foundation with no mess or concrete cure time.
Standard models (concrete length) accommodate five different wood column sizes – four laminated and one solid post. The J columns are a variation of the 3 ply x 6 and 8-inch columns are used for trimming out overhead doors.
Concrete Column - Self Consolidating Concrete (SCC) precasting technology that includes microfibers, superplasticizers, micro silica, a corrosion inhibitor for rust protection of rebar reinforcements and an admixture that gives freeze/thaw protection. Our mix design technology gives three times the strength of standard concrete and guarantees a lifetime of durability.
Steel Bracket – The wood column is attached with 1/2” Grade 5 thru-bolts and 1/4” lags to a “U” shaped steel bracket made of 1/4” steel (double plated on the bottom). This bracket is robotically welded to steel reinforcement bars (size 4 or 5 – depending on Model) that runs the entire length of the column with a hole precast into the base of the column to allow easy attachment of uplift options. Steel brackets are finished with baked polyester powder coat paint.
Strength – Perma-Columns have been extensively tested by both University of Wisconsin and Purdue University. In comparative strength tests, Perma-Columns have proven to outperform the industry standard for wood columns. As a general rule of thumb, Perma-Columns are as strong as the wood they are replacing.