Seems very well made. I had to cut four holes to fit the 6 inch microwave duct/hood on the outside. I figured it might not last at this price point, but to my surprise, I think it'll shrink a dozen times before it gets boring. The back of my cabinet is plywood and the wall is serrated and grooved wood and it cuts easily. You'll need a drill with a 1/2" chuck, so don't force the cut, just let the cutter do the work.