Introduction: Casing Trim Cutting Tips and Tricks
This instructable describes one geometric method of installing door and window casing
Step 1: Mark
Mark the door corners where the casing will meet and then mark the height on the vertical casing.
Step 2: Cut
Cut 45 degrees at the marks on the vertical casing pieces
Step 3: Cut Top
Cut a 45 on one side of the top piece then hold up to the vertical miter to see if the angle needs to be modified.
Step 4: Re-cut
Slightly adjust the saw and recut the miter of the top piece so that the miter is perfect.
Step 5: Opposite Side
Cut a 45 on the top casing for the opposite side, but don't cut to length. Also make an adjustment until the angle is correct. Leave the saw at that angle.
Step 6: Cut to Length
With the saw at the correct angle, cut the top piece to length.
Step 7: Dry Fit
Dry fit the miter.
Step 8: Nail
Nail in place
Step 9: Complete
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