Hi again.

I made those off of a factory original convertible console, but, it was a little bit warped around the screw hole areas, so I clamped the board onto the outside of the console, iraced the line from the inside, and then cut along the line with a jigsaw, leaving about an 1/8 inch to take off with a rasp to get them to sit perfectly straight and level with each other in my car. There are some variations from an optimum, one-size-fits-all template because of little abherrations in the way my carpet and underlayment are sitting. The overlap of the two pieces of carpet is never exactly the same all the way across in any two given cars, so I cut those for making a console sit perfectly all the way down, with no gaps at all, in a particular car. When cutting out for a convertible, you'll always have to cut it, test fit it, pull it back out, tweek it, test fit it again, etc.. You'll want to do that with front brace already attached to the bottom of the console also, so that it doesn't look like it will fit perfect, but, when you attach the front brace, it tries to pull the back of the console up, or have any area in the middle of the console that won't pull all the way down. That, as a side note, is why many of them are busted around the screw holes.
