The first step in cutting trim is going to be identifying the angle you need to cut.
Cut flooring trim at angles.
For the initial angle turn the base clockwise until the saw points to the 45 degree angle mark which you can see on the angle gauge beneath the base.
The most common baseboard corner is an inside 90 degree corner and the easiest way to install baseboards to fit this corner is to cut two pieces of the baseboard at the edges and at an angle so.
Measure across top of door and on the inside and add 3 8 inch to the measurement.
You will need a miter saw to cut the trim at an angle and form a corner.
The most popular angles for interior trim are 90 and 135 degrees and each of those angles can be straight on or with a bullnose.
Learn how to quickly cut a 45 degree angle cut with a circular saw on a quarter round or molding.
Record this measurement with an additional note detailing if the left and right sides of the trim are.
Miter saws have adjustable bases you set to the angle you wish to cut.
The video above provides a great cheat sheet that makes it even easier for you to identify exactly what angle you need to cut.
If you need to measure a mitered angle that s other than 90 degrees you could hunt around for your protractor but there s a better way.
Measure along the wall and floor junction from the first corner to the first cut point.
Slice a trim board at a 45 degree angle.
Cut the 45 degree angle on both sides from the short to short direction.