INSTALLING POSTS ON PRESSURE-TREATED WOOD FRAMING/ CONTINUED TREX SIGNATURE ® X-SERIES ™
Installing Blocking on Straight Runs
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Cross bracing frame
Cross bracing frame
3. Install (2) 2" x 8" cross bracing frames in between joists at 7-1/4". Attach using a total of (12) 3" pressure-treated compatible wood screws. 4. Install (2) 2" x 8" boards as blocking under post location.
7. Set post aside and drill through decking and
blocking using same 9/16" drill bit.
Blocking boards
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8. Attach posts using (4) 1/2" x 6" hex bolts, washers, and tee nuts. Be sure to place washers in correct location as shown. IMPORTANT: Thread tee nut onto bolt until flush with end of bolt as shown.
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Securely attach blocking using a total of (24) 3" pressure- treated compatible wood screws.
Mounting Posts to Blocking 5. Determine edge of framing and measure in minimum
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9. Hammer tee nut into blocking until teeth fully engage with blocking. Be sure to hammer the tee nut and not the bolt itself. 10. Using an impact driver with 3/4" socket, fully tighten bolts until post is secure. Do not push down on bolt while tightening. Use a level on sides of post to ensure post is plumb.
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1”
Blocking
1" from this location. If measuring from corner, ensure 1" from each edge as shown (left image above: deck boards removed for clarity). 6. Using post as template, mark location of holes for mounting bolts using 9/16" drill bit (long bit will be required). 6
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Tip: Slide corner covers up for easier access when installing bolts. 11. Install bolt caps. Align hex shadow line on inner cap with bolt head
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and snap into place; then push outer cap onto inner cap.
Note: Post cap is to be installed after railing of choice is completed.
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NOTE: Construction methods are always improving. Please refer to www.trex.com for the most up-to-date installation requirements.
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