Not just any circular saw blade will do.
Cutting square in vynl siding.
Pros draw the cut line on the back of the plank rather than the front for two reasons.
Mark the line you want to cut on the siding with a pencil.
Use a carpenter s square to draw the line straight.
Slide the end of the siding off the table until the place where you plan to cut it is just past the edge of the table.
Make the line as dark as possible so it s visible when you re cutting it.
One is to avoid having part of the line visible after you make the cut.
When crosscutting vinyl siding all you need is an accurate measurement of the length of the plank and a speed square to draw an accurate perpendicular cut line.
You ll need a fine tooth plywood saw blade to do this correctly.
If you re cutting dark vinyl siding use chalk or light colored tape to mark the line you want to cut.
Put a carpenter s square.
Using a circular saw is the first method that you can use to cut vinyl siding.
This prevents the teeth of the saw from grabbing the material.
To cut vinyl siding with a circular saw you can find specialty vinyl siding blades but most people just turn a fine toothed blade around so it spins the opposite direction.