a circular power saw makes the job go significantly faster than doing it by hand. You can pick up the 18V Ryobi Compact 6.5-Inch Circular Saw (model number PSBCS01B) for about $119 for the tool ...

Beyond the regular circular saw, Ryobi makes track saws and plunge saws ... The plunge saw on the other hand is used to begin a cut midway across a workpiece rather than at its end.