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Stairway Detail NOTES:
» Stair treads built with Trex meet requirements of » Trex rails meet all major building codes for use as a
the major national building codes. Consult your local guardrail system. Local municipalities may require a
municipality for specific requirements. graspable handrail on stairways. Check with your local
•
» Fasten stair treads continuously across at least four building code official for local requirements. See Trex
stringers. ADA Handrail System in the Trex product catalog.
» See chart (at right) for center-to-center spacing of » Trex Porch Boards should not be used for stair applica-
• profiles. tions. Use square-edge composite decking boards and
» Dress the sides of the stringers and risers with trim or manually rout these where needed to allow for use with
Trex fascia for a finished look. hidden fasteners.
» When installing risers, use two screws per every
stringer. Maximum Spacing on CenterStringer» Fascia fasteners can only be used if fascia boards
are being used for risers. If deck boards are used,
recommended composite deck screws must be used
(glue is not required for this application). Transcend �" x 6" ::12
» Most model building codes require the stair treads to
be constructed under the following requirements:
> Stairways must be at least 36" wide* Select, Enhance (scalloped bottom), 9"
> Stair treads must be at least 11" deep and Escapes 1" x 6"
» Gapping between Trex boards on stair treads must be
1/4"-3/8".
» The overhang of the stair tread is not to exceed 3/4". 12"
Transcend & Select 2" x 6"
*For railings that are installed directly over stair treads, the stair
treads may need to be larger than 36"wide. Refer to local building
24 code regulations for details prior to installing stairs and railings.
Installing Trex® Stair Treads
Installed with Hidden Fasteners