Installing J Channel Around Windows
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Place the side j channel and mark it then mark the bottom j channel.
Installing j channel around windows. Cut and install the top j channel. Check the frame of the window and clean anything that is not gonna allow for a j channel to lay flat to the side of the window. Add 2 inches to that number and cut a length of j channel to this. How do you install j channel around windows.
Measure the width of the window.
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