This … I show how easy it is to fold the corners to make the job look great. The seats are normally screwed on but can also be … Every chair will look different here, but I trust you’ll crack the case! Step 2. First things first, you’ll want to flip your chair upside-down (on a sturdy table for support), and use your screwdriver or drill to remove the screws that connect the seat to the chair. Remove your seat from the chair. In this video I show you how to reupholster a dining chair seat cushion. Step 1. Seat bases can be constructed from a variety of materials: solid wood, plywood, pegboard and others. Here we’ll show you how to reupholster a chair with a ‘drop-in’ or ‘screw-on’ seat-a style shared by many benches and stools.