the cuts are about the width of the table saw blade (obviously you do them before you slap the box together!) and aboutas deep as they are wide. Don't want to take off too much, seen? I used adhesive to slap the carpet down onto the piece and then tuck the excess into the ridge. Then you take a utility knife, razor etc. to trim it in the ridge and finish tucking it with a flat head screwdriver or something like that.