Step 2: Handle Grip
The template provided below can be used to size the hand grip for somewhat large hands, but adjust your measurements as necessary.
Measure and mark to the middle of the 22” side of the plywood. Be sure to leave approximately ¾” to prevent the handle from breaking. When folded up, the boat boxes should leave approximately 2” of the center plywood sticking out.
Using a drill with the Forsner bit or a large regular drill bit; remove the material inside the finger section of the handle. Next, use a jigsaw to straighten up the lines. Running a router with ¼” or ½” roundover bit over the edges improves the feel of the handle.
Also, I have attached an alternative for using 3/4" plywood as the center divider for those with access to a greater variety of tools. Instead of plywood as the center, this process uses a 2x6 and 1x2s to frame in a hardboard piece. Just a little bonus!