How To Measure A Picture Frame For Glass. I like to throw in even more wiggle room, usually another 1/2, to the total. Please double check your measurements or confirm your sizes with a friend.
However, you want to measure the inside edge. The two main measurements needed to calculate the outside dimensions of a picture frame package are: Simply measure the top and side of your image.
The two main measurements needed to calculate the outside dimensions of a picture frame package are:
Measuring your overall picture frame size Subtract 1/2 inch from 8 1/8 to get 7 5/8 inches. Subtract 1/2 inch from 12 1/8 to get 11 5/8 inches. If you are ordering a frame and mount combination, the size you enter will relate to the opening of the mount.