How to Cut a Shag

Shag haircut diagram
Q: Can you tell me (or draw a diagram of) how to cut hair in a shag?
A: To cut a shag style, you should section the hair and leave down a 1/2-inch perimeter around the head and whatever area you want to have for the bangs. Starting in the bangs area, cut the bangs to the desired length and move to the back to cut a guide for the desired length at the nape of the neck.
Cut your perimeter to create the shape you want the hairline to follow in the finished cut. (In the photos the perimeter is cut at a sharp downward angle along the sides to the desired length in back for the longer style, and at a shallower angle for the shorter style.)
Take down your top section of the hair and cut the hair to the desired length to create the top guide, by combing a slice at the center of this section of the hair upward to the center of the top of the head (make sure to comb from both sides to get it centered) and cutting the stationary guide. You can blend the length of the top guide with the bangs if you desire.
Now, work from either the back or front of the head and take thin vertical slices of the hair and comb them straight up. Cut toward the center guide so that the hair is cut in a straight line horizontally. Work your way from back to front or front to back on both sides until all the hairs have been cut to the guide length at the top of the head.
How to cut a shag
Lower the remaining sections and cut as described, by combing thin slices straight up and cutting them to the guide length. As you reach the bottommost sections of the hair, be sure to blend the lengths of the perimeter to the guide length so that you maintain the shape you were trying to create in your perimeter cut. You may need to switch to an angled cutting line in the back of the hair if you are trying to get create the longer version of this haircut.
When all of the hairs are cut, cross-check the cut by combing the hair outward in horizontal slices and looking for "corners" or "protruding" hairs that may have been missed. Check the cut from top to bottom, working in areas about 3 inches wide. Once you're sure that your cut is even, you're done, and can style the hair as desired.
The hair can be texturized using thinning shears to soften the look and allow areas to lie flatter, or by using a razor for a smoother finish. (See the diagram for cutting angles and elevations for this cut.)
See also: How to cut hair