It is not difficult to build a deck railing as long as you have some kind of idea how long you want it. What you would nee is a circular saw, power drill, tape measure, hammer, chalk line, level, combination square, framing square, and hand saw. Also it is recommended that you hare gloves, goggles, and dust mask for protective measures. It is best when using the existing structure and steps
. that you measure 3 feet up from the top of the step and mark it. Railings also provide a safety as well enhancing the appearance to your deck. For more information on this query you can visit this trusted site http://www.ask.com/bar?q=build+a+deck+railing&page=1&qsrc=0&ab=6&title=The%20Deck%20Pros-%20Railings&u=http%3A%2F%2Fwww.thedeckpros.com%2Frailing.shtml.