45 degree angle is mostly what most picture frames need. Such type of cut allows you to join different pieces together easily. u003cbru003eu003cbru003eAt the end these joints will look super smooth and much better in a combined form. However, you need to ensure accuracy throughout the project. It is because a slight bit of deviation in an angle can lead to ruining the whole project. u003cbru003eu003cbru003eOf course some people try to adjust the errors in the cuts but to be very honest it only reduces the lenght of the wood which is totally an unwanted situation.u003cbru003e