Saw cutting guide

A method for cutting a metal workpiece with a metal-cutting electric circular saw comprising:

• placing a portable cutting guide on top of said workpiece, said portable cutting guide comprising
• a main base plate having a top side and an underside;
• a guide track, configured on the top side of said main base plate, said guide track including two guide elements configured in parallel, each of said guide elements having a planar lateral edge for slidably engaging therebetween a guide plate of said metal-cutting electric circular saw, wherein said guide track includes slot formed in said main base plate between said two guide element that enables a cutting edge of said metal-cutting electric circular saw to extend through the main base plate;
• and
• an alignment fence, pivotally mounted to the underside of the main base plate, for selectively aligning an metal workpiece in relation to said guide track;
• and
• aligning a reference surface of said metal workpiece with said alignment fence;
• adjusting the alignment of the main base plate in relation to the alignment fence in order to position the guide track at a desire angle of cross-cut;
• engaging the guide plate of said metal-cutting electric circular saw in said guide track;
• energizing said metal-cutting electric circular saw;
• and
• advancing said metal-cutting electric circular saw forward in said guide track cutting said metal workpiece.