Installing Helical Pier Deck Supports
Instead of a poured concrete pier, savvy deck builders use power-driven helical screw piers (or piles).
By Ted Cushman
http://www.builderonline.com/Images/tmpAEA9.tmp_tcm10-1917240.jpg
Credit: Pete Sucheski
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Screwing Down Steel pile depth depends on soil resistance and frost depth. Larger screw sizes can support more weight.
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Bearing Up Bearing capacity is determined by measuring driving torque or by conducting a blow count test.
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Hooking In Steel brackets connect the pier top to the deck framing for bearing, bracing, and uplift resistance.
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