Review on Enhance Your Deck Construction with Johnson Level Tool 60 275 DeckMate: A Reliable and Efficient Tool for Precision Work by Hunter Schneider

They're cheap and from Revain so you can return them. But they're no more useful than a piece of hardwood cut to 1/8 inch or 3/16 inch and marked with a pencil. Anyone who builds decking boards has the tools to do so. ) can only be used at the end of the board unless you want to lie down on the deck and mark the position of each screw with a pencil; There's no way to align the spacer with the joists (other than looking at it) so that the nail holes (not the grooves) are positioned correctly, and even if the washer aligns with the joists, only one of the holes will be right on one side of the Board aligned Finally, the instructions and YouTube video are extremely helpful with few details, probably to cover up that the tool is missing some features that could easily be incorporated into the design. Unfortunately the only better solution for the same price range (Jig-a-Deck) is only available with a 1/4" washer too wide for green (wet, swollen) lumber sold by No More Lumber Yards and after install shrinks to the point where your 1/4" spacing grows to 1/2".