If you’re planning to upgrade your outdoor space with a sleek, seamless deck, learning how to install TimberTech hidden fasteners is a game-changer. These fasteners keep your deck looking clean and polished by hiding screws beneath the surface, giving you that flawless finish you want.
But getting it right is key to making sure your deck stays strong, safe, and beautiful for years. In this guide, you’ll discover step-by-step how to install TimberTech hidden fasteners easily and correctly, whether you’re working with grooved boards or edge boards.
Keep reading to unlock expert tips that will save you time and frustration while transforming your deck into a stunning retreat.

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Timbertech Fastener Options
TimberTech offers several hidden fastener options designed to secure decking boards firmly without visible screws or nails. These fasteners create clean, smooth surfaces that enhance the deck’s appearance. Each system fits specific TimberTech board profiles and installation needs. Choosing the right fastener ensures a durable, professional finish for your deck.
Concealoc System
The CONCEALoc system works with all TimberTech grooved boards. It uses clips that fit into the board grooves and attach to the joists. This method hides the fasteners completely, leaving no visible screws on the deck surface. Installation requires a drill or pneumatic nailer. The system allows the boards to expand and contract naturally.
Edgeloc System
EDGELoc fasteners fit TimberTech EDGE grooved boards. These clips lock into the board edges and secure them to the joists. This system also hides all screws for a clean look. It is simple to install and allows for quick board replacement if needed. EDGELoc is ideal for decks requiring a seamless finish.
Fusionloc And Sideloc
FUSIONLoc uses stainless steel clips to hold boards firmly without visible screws. It offers strong resistance to corrosion and easy installation. SIDELoc is designed specifically for TimberTech AZEK square-edged boards. It secures boards invisibly along the sides, providing a sleek deck surface. Both systems support natural board movement.
Compatible Third-party Systems
Several third-party fasteners work well with TimberTech decking. Cortex, Starborn Pro Plug, and some CAMO fasteners are popular choices. These systems offer alternative hidden fastening methods for different board profiles. Always check compatibility and manufacturer guidelines before use. Proper fastener choice ensures deck stability and appearance.

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Tools And Materials Needed
Before installing TimberTech hidden fasteners, gather the right tools and materials. Proper equipment makes the job easier and ensures a strong, lasting deck. Each tool plays a specific role in the installation process. Use quality materials designed for TimberTech decking for best results.
Drill And Pneumatic Gun
A drill is essential for pre-drilling holes and driving screws. Choose a drill with adjustable speed to control the process carefully. A pneumatic gun speeds up fastening and offers consistent pressure. Both tools help secure fasteners tightly without damaging the deck boards.
Fasteners And Screws
Use TimberTech-approved hidden fasteners for your deck type. CONCEALoc and EDGELoc are common choices for grooved boards. Select stainless steel or coated screws to resist rust and corrosion. The right fasteners ensure a clean, fastener-free deck surface and strong board attachment.
Safety Gear
Protect yourself with safety glasses to shield your eyes from debris. Wear gloves to avoid splinters and improve grip on tools. Use ear protection when operating loud equipment like pneumatic guns. Safety gear helps prevent injuries and keeps your work comfortable.
Preparing The Deck Surface
Installing fasteners on grooved TimberTech boards requires precision and care. These fasteners fit into the board grooves, securing the decking without visible screws. Proper installation ensures a smooth, clean deck surface that lasts. Follow these steps for a solid and professional finish.
Positioning The Fasteners
Start by placing the fastener inside the groove of the board. Align it so the clip grips the board edges firmly. The fastener should sit flush against the joist beneath. Proper placement prevents movement and keeps boards tight.
Securing With Drill Or Gun
Use a drill or pneumatic gun to drive the fastener’s screw into the joist. Keep the tool straight to avoid slipping. Tighten just enough to hold the board firmly, without cracking the material. Avoid over-tightening to protect the decking.
Spacing And Alignment Tips
Space the fasteners evenly, typically every 12 to 16 inches along each joist. Check alignment often to keep boards straight and even. Leave a small gap between boards to allow for expansion. Consistent spacing ensures durability and a neat appearance.

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Frequently Asked Questions
When Not To Use Hidden Deck Fasteners?
Avoid hidden deck fasteners on solid or non-grooved boards and when manufacturer guidelines disallow their use. Use only compatible fasteners for specific board types to prevent damage.
What Hidden Fasteners Work With Timbertech Decking?
TimberTech hidden fasteners include CONCEALoc for grooved boards, EDGELoc for EDGE boards, FUSIONLoc, and SIDELoc. Compatible options are Cortex, Starborn Pro Plug System, and some CAMO fasteners. Always match fasteners to your board type and follow manufacturer guidelines for secure installation.
How Do You Install Hidden Fastener Decking?
Start by selecting hidden fasteners compatible with your decking type. Align boards on joists, then insert fasteners into grooves. Secure fasteners with a drill or pneumatic gun. Maintain consistent spacing for proper drainage and expansion. Follow manufacturer instructions to ensure a secure, clean finish.
Do You Need To Predrill Timbertech Decking?
Predrilling TimberTech decking is generally not required when using recommended hidden fasteners. Always follow the manufacturer’s installation guidelines for best results.
Conclusion
Installing TimberTech hidden fasteners creates a clean, smooth deck surface. Follow each step carefully for the best results. Use the correct fastener type for your board style. Proper installation ensures your deck stays secure and looks great. Take your time and check manufacturer instructions when needed.
Enjoy your new deck with a sleek, hidden fastening system.



