You can use circular saws when you install custom shelves and cut them to size. [3] X Research source
Measure the area to be cut.
It will say on the side of your saw blade whether or not your blade is designed to cut through metal. Any continuous or sharp-toothed blade that is used for metal cutting will work. A diamond blade will give you the cleanest results, but they’re more expensive than a standard circular saw blade.
If you’re uncomfortable taking a hand off of the saw, you can weigh the sheet metal down with a heavy object. Clamps won’t really work, since the grooves in corrugated metal make it hard to maintain the necessary tension.
Avoid moving your circular saw at an angle as you cut. The grooves in corrugated metal will make it easy to cut a straight line, but if you try to turn your saw you’ll risk losing control of it. This method is best for cutting long lengths of straight lines in corrugated metal.
If you’re doing it correctly, it will feel like you’re cutting with a pair of scissors! Be careful not to drop the section that you’re holding in your nondominant hand, or you’ll risk losing control of the snips or cutting your arm on the edge. This method works best for cutting smaller sections of sheet metal or cutting at an angle.
Make sure that your grinder is off before tightening the disc. Never remove the safety guard from your angle grinder. Never take both hands off of your angle grinder when you’re using it.
Wear long sleeves and pants as well for an extra layer of protection against the sparks that will come off of your grinder.
You have more control when cutting with an angle grinder, so you can use it to make freeform and round cuts by rotating your grinder slowly as it turns. Using an angle grinder has the added benefit of leave a smooth edge, since the side of your grinder is designed to cut through materials as well.
