Backyard Bridge Tools and MaterialsIn addition to a 7-1/4-inch circular saw with a sharp carbide blade, you’ll need a drill, random-orbit sander and basic hand tools. A miter saw, router and pneumatic brad nailer come in handy, but you can do without them. There’s a lot of ripping—cutting boards lengthwise—required to create the railing pieces. Buy or borrow a table saw for this if you don’t have one, or have someone do the cutting for you. You can use a circular saw with an edge guide, but ...