Place the baseboard on the table of the miter saw with the length of the board perpendicular to the saw blade. Cut through the back of the board, making the cut at a 90-degree angle to the length of the board. The saw should not cut all the way through the board. Turn off the saw and gently flex the board at the cut.

How do I make my baseboards flexible?

Place the baseboard on the table of the miter saw with the length of the board perpendicular to the saw blade. Cut through the back of the board, making the cut at a 90-degree angle to the length of the board. The saw should not cut all the way through the board. Turn off the saw and gently flex the board at the cut.

What angle do you cut baseboard corners?

For most DIYers, fitting baseboard moldings on the interior corners of the room is best accomplished with miter joints—45-degree miter cuts to each adjoining piece of molding. When fit together, these corners make 90-degree angles.