Choosing the proper type of sandpaper is very important when finishing a home remodeling project. Sandpaper is measured by grit from 24 up to 1000. The grit number refers to how many grains are found per inch of paper. Each piece of sandpaper is stamped with a number on the back for easy identification. The higher the grit number the smoother the sandpaper. You’ll want to start sanding with a lower number to remove larger pieces of unwanted material and then gradually reduce to higer numbered smoother grades to produce a smooth sanded finish. Sandpaper packages are available in sets which include various grit sizes in course, medium, fine and extra fine grits.