How To Cut Window Opening In Vinyl Siding

Re install the vinyl siding.

How to cut window opening in vinyl siding.

With a pencil straightedge and measuring tape you need to draw a straight horizontal line at which you want to cut the strip of vinyl siding into. Continue installing courses of siding along the sides of the window leaving 1 4 inch spaces within the j channel at the end of each piece of the siding for expansion. Between each cut adjust the blade depth so it is deeper by inch. If you re using a sliding miter saw and the siding is still chipping try slowly pulling the saw backward through the siding.

Lock a small piece of scrap siding into the lower panel next to the window. Use a hammer or a drill to take out any nails or screws that are holding the window in place. Keep cutting until you get all the way across the vinyl siding. They re cheap and available at any home center.

Vinyl siding can be cut with either tin snipper or a utility knife. Once the siding has been cut to fit allow inch for expansion it can be slid into the j channel with the bottom locked into place. As you re cutting the siding avoid closing the blades on the tin snips all the way so you get a cleaner cut. Wear safety goggles while you re cutting the siding.

Set the depth of the blade to about inch and cut the lap siding in small increments. Once the new window has been put in place make sure that sufficient j channel molding has been installed so the siding can fit into place around the window. This is a trick on how to cut vinyl siding the quickest and easiest way without breaking or chipping it. Using the line you scored with the hammer and chisel as your cutting guide use the circular saw to cut along the length of the line.

Buy a blade made to cut vinyl siding. Next we are going to score the strip of vinyl siding. Mark cut and notch the top. Cut along the marked line using tin snips.

First lay a strip of vinyl siding onto a flat and clean working table. Add approximately 6 4mm to both sides these marks represent the vertical cuts. Sometimes there are little pieces of wood between the window and the wooden studs that hold the window tight.