Yes, you can cut pegboards. You’ll need the appropriate tool to cut the material the pegboard is made from for the cut you want to make. For metal pegboards, an angle grinder with a cutting wheel works well. For tempered pegboard, a circular saw with the appropriate blade does a nice job. Keep in mind that many of the pegboards we carry have a folded edge to lift the pegboard from the wall, so if you cut off that fold, you’ll need to brace the mounting screws with spacers or a furring strip.