9 Brothers Building Supply carries an assortment of quality Northport rocks ranging in sizes and colors. Our Brentwood location carries Bluestone screenings and dust while our Riverhead location is the main source for crushed bluestone gravels, pea gravels, red crushed gravels, and beach pebbles from MS International. These rocks will be perfect for permeable pavement solutions, driveways, and walkways. Stop in today and you will find what you need!