It's taken a little while to post this up, but here is how to make your own deck grip.
This first image shows the EVA sheet with the deck grip template clamped in place and the eva cut out with a sharp stanley blade. New blades work best, they really slice thru the eva.
This next image is the kicker which is glued to the top of the back piece of eva
This shows the 3 pieces of eva cut for my deck grip
This shows the start of masking out the board in preparation for spraying with thinned contact cement
The board is ready for spraying and shows the spray gun and a can of the contact that I use
The eva is assembled and ready for spraying with contact cement
The boards deck masked out and sprayed with contact
The eva sprayed with contact cement and has extra sprayed on the edges
The boards deck is ready for the sprayed eva, the masking paper has been removed
The first piece of eva is in place on the boards deck the other piece is showing glue side up
All the deck grip is in place and ready for machining/sanding/grooving
Not a good image but I'm trying to show the thinned edges of the eva
This the tool I use for sanding and thicknessing the eva on the boards deck. The EVA must be sanded to remove the slick moulding surface, if you don't do this the surface is slippery even after grooving.
This shows the start of cutting out the handle hole and shows the sanded surface of the eva, the sanding was done with the planer
Start a small hole for cutting out the handle, this positions the blade better
The handle neatly cut out
I have nearly finished trimming out the handle hole, this is beveling the eva edges, note the blades angle. Notice this is done after sanding and thicknessing with the planer
This is my current grooving tool, I do this manually. I have a router set up for eva grooving but it is for kite board pads and these are done off the board.
Marking out the grooves with a whiteout pen
A closeup of the nonslip grooves
This is a better image of the grooves showing the tapered edges
The finished 8'6" board deck grip in place
Regards Rod