It is absolutely important to have a safety plan if your business is in the field of construction. Everyday, your employees deal with danger and it is not easy for them to risk their life almost every hour just to earn enough dollars to provide for their family. What you need to do as their employer is come up with a plan that would prevent accidents and all other safety issues that could arise during work.
However, if you do not want to spend money or you cannot find one that would suit your training ideas, then try the integrated approach. You can look up other companies' templates online and then make a few revisions to make it fit your own approach. If you are lucky, you might even stumble upon a training plan template from a company that is within the industry your business belongs to.