Make crosscuts on vinyl siding using a circular saw but you should install a vinyl cutting blade to minimize chip out.
Cutting hole in vinyl siding.
Fit a circular saw with a fine toothed plywood cutting blade.
Cut a scrap piece of siding to a length that is several inches longer than the hole.
Clean the siding around the hole with vinyl siding cleaner or dish detergent and water then dry the siding.
That said the hole is the least of your effort.
When making longitudinal cuts score with a knife and break along the score line.
You can also use tin snips to make crosscuts.
When we cut with a circular saw we often install the blade backwards to minimize ripping and tearing of the vinyl.
Use tin snips or a rotary tool to make curved cuts.
A clean way to cut vinyl siding is to score it with a utility knife and then bend the vinyl at the score.
Place a strip of siding on the work table and align the place you plan to cut it with the edge of the table.
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Cutting the vinyl siding is easy.
For the smoothest cuts put the blade in.
A hole saw tin snips etc will slice right through it.
The best way to cut vinyl siding circular saw.