The Lumber Loc™ system is the most user friendly and competitively priced concealed deck fastener on the market today. Engineered for use with all decking materials including, cypress, exotic hardwoods, plastic and wood composites. The Lumber Loc deck fastening system provides a pristine deck surface free of nail or screw holes.

• The patented expansion wings provide 1/4" uniform spacing between deck boards while allowing expansion and contraction in both width AND length.

• Lumber Loc™ fasteners require no pre-drilling, typically required with other deck fasteners when used with  dense exotic hardwoods such as Ipe. All deck boards are set level and to a uniform height.

• Lumber Loc™ fasteners are easily installed from above the deck surface, making it truly user friendly.

• The provided high grade 305 stainless steel screw is securely fastened between the deck boards at a 90-degree angle to the joist with the provided extended driver bit.

• One Lumber Loc™ clip secures 2 adjoining deck boards which speeds installation and also allows for easier future removal of an individual board.

• The black colored Lumber Loc™ clips and the provided black powder-coated screw heads hide in the shadow of the joint, making the clips virtually invisible from above and below the deck surface. 

• Lumber Loc™ clips are formulated from a durable copolymer blend of polypropylene to resistant the damaging effects of salt, oil, insects, as well as many acids and chemicals.
   

1. Fasten the first or starting board to intersecting joist with the provided screws or stainless steel nails.

2. The second deck board is fastened with a Lumber Loc® Fastener at the rate of one fastener per board and  joist intersection.  For pre-grooved decking, go to step 3 below.

3. If your deck boards are solid and not pre-grooved on the sides, follow these instructions using a standard biscuit joiner saw: You can achieve the perfect groove height for Lumber Loc® fasteners by removing the top guide plate of the biscuit joiner and  resting it on the joist. Set the saw blade depth at  5/8" and cut the slot at the center intersection of each deck board and joist (see figure 2 ).

4. Place a Lumber Loc® Fastener in the pre-groove board or slot centered on each joist. Fastener legs must rest flush on joint after insertion. Attach the fastener with  the provided stainless steel screws at slightly less than a 90 degree angle through the Lumber Loc® Fastener. The screw head should be relatively flush with fastener. Gently snug the fastener, taking care not to over-tighten the screw as to bow the fastener.  The fastener wing must remain parallel to the joist so that the next deck board fits snugly. You will find Lumber Loc® user friendly and efficient.

5. Repeat the process for each board until you reach the outside edge of the last board which is fastened with the remaining provided screws or stainless steel nails, if preferred.