The Trex Hideaway Universal Hidden Fasteners for Wood Framing (PDF) provide complete installation guidance for using Trex Universal Hidden Fasteners with traditional wood framing systems. This manual covers step-by-step instructions for installing grooved deck boards, routing square-edge boards, setting proper gapping, and fastening boards in angled or corner applications.
Trex Universal Hidden Fasteners are designed to create a clean, fastener-free deck surface while maintaining proper board spacing for drainage and ventilation. This guide outlines the recommended end-to-end and width-to-width gaps based on temperature at installation, including the requirement for a 1/8″ gap above 40°F and 3/16″ below 40°F at board ends. Builders will also find guidance on maximum overhang allowances, airflow requirements, and spacing adjustments for humid climates.
For first-board installation, the guide explains when to use start clips versus face screws, how to secure the leading edge, and how to maintain correct alignment across the full width of the deck. It also provides instructions for installing butt seams over a single joist using a 2×4 nailer block—or by using the Trex Hideaway Butt Joint Clip for single-joist applications.
Installers working with square-edge boards will find detailed routing instructions using the Trex groove cutter, including where to rout, how deep to cut, and when routing is required for stair applications. Diagrams show how to route from the bottom edge of the board and how to prepare ends for proper fastener engagement.
Angled deck boards and corner installations are covered with clear examples, including how to start at a 45° triangular piece and work outward while maintaining correct fastener placement at ½” off-center. The guide also includes instructions for using the optional Trex One-Step Hidden Fastener Tool to speed up installation and ensure consistent screw depth.
Download the full Trex Hideaway Universal Hidden Fasteners for Wood Framing (PDF) below for diagrams, spacing charts, stair tread instructions, and fastening techniques. For help selecting the right Trex hidden fastener system or planning your deck layout, contact your local TimberTown team—we’re here to help you build confidently.
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