1. Measure and mark the panel to indicate the location of the cut.
2. Cut the panel at a 45 degree angle. (It's helpful to use a simple panel cutting jig on a table saw.)
3. Flip the leftover panel around 180 degrees so that you're cutting a 45 degree angle reversed to the last cut. The cut should be made as close as possible to the end of the panel, in order to keep the pattern matched.
4. Only a small triangle-shaped wedge of waste should be left over.
5. Use the standard installation instructions to mount one of the cut panels, then glue and screw the panel in place.
6. In cases where the next piece is butting into a wall, it will be necessary to measure it out and cut it straight.
7. Making sure that the miter is good and tight, mount the other cut panel, then glue and screw it in.
8. Use the appropriate color-coordinated caulking to caulk any gap or imperfection in the miter.
9. Your corner is now in place!
MAKE SURE to observe and obey all safety rules and recommendations set forth by tool manufacturers
and local,
state, and federal authorities for any building project including all applicable building codes.