TREX SELECT® T-RAIL STAIR RAILING Installation Instructions
IMPORTANT NOTES: » TREX SELECT T-RAIL RAILINGS ARE DESIGNED TO BE INSTALLED OVER THE DECKING FRAME OR ON INSIDE OF RIM JOIST. NOTCHING OF PRESSURE-TREATED POSTS OR POSTS INSTALLED ON OUTSIDE OF RIM JOIST IS NOT ALLOWED. » POST TO POST SPAN WILL BE LESS THAN 6' OR 8'. PRIOR TO INSTALLING POSTS CALCULATE POST TO POST SPAN USING A MAXIMUM RAIL LENGTH REQUIRED AND THE ANGLE (32°-37°) AT WHICH THE RAILS WILL BE INSTALLED. DO NOT INSTALL STAIR POSTS AT 6' OR 8' SPAN, AS STAIR RAILINGS WILL THEN BE TOO SHORT. » IF INSTALLING STAIR RAILING OVER 6', THE TREX T-RAIL ALUMINUM RAIL STIFFENER MUST BE USED TO MEET CODE REQUIREMENTS. » IF USING OPTIONAL STAIR GASKETS AND BRACKET COVERS, BOTH T-RAIL AND LOWER STAIR RAIL WILL HAVE TO BE CUT - SEE DETAILED INSTRUCTIONS. Care and Cleaning Maintaining the appearance of your Trex T-Rail railing is important. The occasional wash is recommended as over time your railing may show signs of weathering as a result of exposure to the elements. The frequency of cleaning will depend on the environment and exposure to various types of elements.
» Clean railing using a standard cleaning vinegar or mild soap and water. » For more detailed cleaning recommendations please refer to the Trex Railing Care and Cleaning guide found on www.trex.com.
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PARTS
A. Stair T-Rail B. Stair Bottom Rail C. T-Rail Upper Post Stair Bracket D. T-Rail Lower Post Stair Bracket E. Bottom Rail Brackets F. Balusters
J. A djustable foot block (quantity of one is required for all railing span lengths) K. T-Rail Upper Post Stair Gasket L. T-Rail Upper Post Stair Bracket Cover M. T-Rail Lower Post Stair Gasket N. T-Rail Lower Post Stair Bracket Cover O. Lower Post/Lower Rail Stair Gasket P. Upper Post/Lower Rail Stair Gasket
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T-Rail Upper Post Stair Bracket
T-Rail Lower Post Stair Bracket
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G. Post Sleeve Cap* H. Post Sleeve Skirt* I. Post Sleeve*#
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> Select All-in-One Post Sleeve
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> 4x4 Post Sleeve > 6x6 Post Sleeve
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* Item not included in the Select railing kits. Note when using the Select All-in-One Post Sleeve, the cap and skirt are included with this post sleeve. # 4 x 4 (102 mm x 102 mm) and 6 x 6 (152 mm x 152 mm) post sleeves are designed to fit over 4x4 pressure-treated post. NOTES: » In most cases, a post and post sleeve longer than 39" will be needed on the lower section of stair rail to accommodate stair angle. » Make sure top and bottom posts for stairs are installed at nose of each tread. » If using 8' railings, the Trex Select 8' Aluminum T-Rail Stiffener (sku SELALTRAILSTIFFNR sold separately) can also be used to allow the rail to be stronger if required.
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NOTE: T-Rail Aluminum Rail Stiffener not shown above but is required for all stair railing installations over 6'.
DETERMINING BALUSTERS NEEDED
Baluster Type Per 6 ' Section
Per 8 ' Section
Stair Application
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Screws Supplied with Brackets C1. 2 " Wood screw for attachment of T-Rail stair bracket to wood post/ composite sleeve C2. 3" Wood screw for attachment of lower rail bracket to wood post/ composite sleeve C3. 1" Self-drilling rail screw for attachment of railing to bracket
BALUSTER OPTIONS
C1 C2
C3
Square Composite
Round Aluminum
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Have Questions? 1–800–BUY–TREX
NOTE: Construction methods are always improving. Please ensure you have the most up-to-date installation instructions by visiting: trex.com
STRS-0525
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