High School

If you want to apply for jobs in these three trades, you should be at least 17 or 18 years old to qualify for apprenticeship programs. You should also have graduated from high school or have received a GED. Take at least some courses that involve using hand tools, reading blueprints, and taking precise measurements. Other courses that will be helpful include general math and core English. Taking art courses will increase your knowledge and perception of colors (which is helpful in the marble and tile trades), and many vocational courses will help you improve your manual dexterity. In addition, since being in good physical condition is often necessary in these jobs, participate in sports and general physical education classes.