Sometimes you may need a longer piece of lumber than you have with you, but you don’t want to make a trip to the lumber yard. The Coupler is the ideal solution. Quickly make an 8’ piece of lumber out of two 4’ pieces, or a 10’ piece from an 8’ and a 2’ piece. The coupler creates a very strong joint and it can be used anywhere in your frame structure. See item 6 in the illustration too see the location of this bracket.