TREX SELECT ™ ALUMINUM POSTS Installation Instructions for Pressure-treated Wood Framing
» Metal backplate is only required for 2.5" (6.4 cm) post in IRC installations. (Consult local code official for more information.)
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5. Using post as a template, mark locations of holes. 6. D rill through decking and blocking boards using 5/8" diameter bit (long drill bit will be required).
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7. Attach posts using four
3/8" x 6" (1.0 cm x 15.2 cm) hex cap bolts, washers, and nuts, along with aluminum back plate on underside of blocking. If the project requires IRC compliance, this back plate MUST be installed under the decking to ensure this will meet code compliance. Reference SKU part number ALPOSTHWDECK for
required hardware and aluminum plate. (Consult local code official for more information on IRC Compliance.)
Note: If attaching post directly to pressure-treated wood, use a thin stainless steel or plastic barrier strip under the baseplate.
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NOTE: Construction methods are always improving. Please ensure you have the most up-to-date installation instructions by visiting: trex.com
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