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How to Use Steel Metal Deck Support Posts and Columns

Round steel structural columns with base plates welded to the top and bottom are another option.  The most cost effective steel post is 4.5” diameter with 1/8” thick walls.  Many of these are part of an assembly for a decorative columns.  Steel is rarely used in residential deck construction because it is expensive, not readily available and more complicated to install.  If you do choose to use steel be sure to check it out with your building inspections department and follow the manufacturer’s installation instructions.    

Metal Support Columns


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Create a free account and get instant & exclusive access to all that Decks.com has to offer:

Checkmark 1,000+ How-To articles
Checkmark 80+ Free Deck Plans
Checkmark Deck Planning Calculators
Checkmark Free & Simple Deck Design Tool
Deck Support Columns

How to Use Steel Metal Deck Support Posts and Columns

Round steel structural columns with base plates welded to the top and bottom are another option.  The most cost effective steel post is 4.5” diameter with 1/8” thick walls.  Many of these are part of an assembly for a decorative columns.  Steel is rarely used in residential deck construction because it is expensive, not readily available and more complicated to install.  If you do choose to use steel be sure to check it out with your building inspections department and follow the manufacturer’s installation instructions.    


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Browse some examples of decorative deck support posts for tall decks.

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